user: You are a structured reasoning expert tasked with solving problems step by step. 
You first think about the reasoning process in the mind and then provide the answer. The reasoning process and answer should be enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think> reasoning process here </think> <answer> answer here </answer>. 
Given a question and the associated knowledge graph triplets (entity, relation, entity), you are asked to answer the question with these triplets and your own knowledge. 
You can break down the original question into several sub-questions and explore the given knowledge graph to solve them step-by-step. If there are multiple possible answers, choose one as the final answer. 
After thinking, when you finally reach a conclusion, clearly state the answer within <answer> </answer> tags, i.e., <answer> answer here </answer>. 
Question: who killed david ruffin? 
Knowledge Triplets: Southern United States, location.location.containedby, United States of America
Leonard Chess, people.person.nationality, United States of America
African American, common.topic.webpage, m.09y2t_h
Soul music, music.genre.subgenre, House music
Indie rock, music.genre.subgenre, Indie pop
Blues, music.genre.subgenre, Soul music
Soul music, music.genre.subgenre, Soul blues
Rhythm and blues, music.genre.recordings, Problem
Nedra Ruffin, people.person.gender, Female
20th Century Masters: The Millennium Collection: The Best of David Ruffin, common.topic.notable_for, g.125dhl6nt
m.09wsrjm, common.webpage.topic, African American
Heroin overdose, people.cause_of_death.parent_cause_of_death, Drug overdose
m.0bw12v0, tv.tv_guest_role.episodes_appeared_in, ABBA / David Ruffin / Frank Gorshin
David Ruffin, award.award_nominee.award_nominations, m.0jzr5c3
David Ruffin, people.person.children, Nedra Ruffin
Soul music, music.genre.subgenre, Psychedelic soul
African American, common.topic.webpage, m.0g5b7fp
African American, common.topic.image, Crispus Attucks
My Whole World Ended, music.album.releases, My Whole World Ended
Gentleman Ruffin, common.topic.notable_types, Musical Album
African American, common.topic.webpage, m.0b47qvy
David Ruffin, music.artist.album, Gentleman Ruffin
Ike Turner, people.deceased_person.cause_of_death, Drug overdose
Drug overdose, people.cause_of_death.parent_cause_of_death, Assassination by 'Accident'
radioIO Classic RNB, broadcast.content.broadcast, radioIO Classic RNB - 32kbps Stream
m.01w7xy7, music.group_membership.group, David Ruffin & Eddie Kendricks
m.0jzr5c3, award.award_nomination.award_nominee, David Ruffin
Ruffin & Kendrick, common.topic.notable_for, g.1256v9xnk
Charles Stepney, music.artist.label, Chess Records
Ruffin & Kendrick, common.topic.notable_types, Musical Album
David Ruffin, broadcast.artist.content, radioIO Classic RNB
Gospel music, music.genre.subgenre, Urban contemporary gospel
Disco, common.topic.webpage, m.09xvw6d
Soul music, music.genre.subgenre, Smooth soul
David Ruffin, music.group_member.membership, m.01w7xy7
Jazz, music.genre.subgenre, Jazz-funk
David Ruffin, music.group_member.membership, g.11b6bwf9nw
David Ruffin, people.deceased_person.cause_of_death, Drug overdose
David Ruffin, broadcast.artist.content, SoulfulClassics.com
Natasha Andersen, base.fictionaluniverse.deceased_fictional_character.cause_of_death, Drug overdose
African American, common.topic.webpage, m.09w10n8
African American, common.topic.webpage, m.0b46zq1
Turn Back the Hands of Time, music.recording.artist, Jimmy Ruffin
Rhythm and blues, music.genre.subgenre, Mod
I've Lost Everything I've Ever Loved, music.album.releases, I've Lost Everything I've Ever Loved
m.0bv_g0p, tv.tv_guest_role.actor, David Ruffin
David Ruffin, music.featured_artist.recordings, Set 'em Up (Move in for the Thrill)
Chess Records, music.record_label.artist, Bobby Bland
m.09xxvmq, common.webpage.topic, Disco
Chess Records, music.record_label.artist, Alan Gerber
Disco, common.topic.article, m.026zm
David Ruffin, people.person.nationality, United States of America
David Ruffin, music.artist.label, Warner Bros. Records
Saturday Night Fever, film.film.country, United States of America
m.0bw0ph5, tv.tv_guest_role.actor, David Ruffin
David Ruffin, people.person.sibling_s, m.0k6llv_
David Ruffin, people.person.spouse_s, m.0h4vgrl
David Ruffin, people.person.children, Kimberly Ruffin
David Ruffin, music.artist.origin, Whynot, Mississippi
In My Stride, music.album.artist, David Ruffin
m.09w10n8, common.webpage.topic, African American
Funk, music.genre.subgenre, Jazz-funk
Chess Records, music.record_label.artist, Harry Womack
African American, common.topic.webpage, m.0b48pfv
radioIO Classic RNB, broadcast.content.broadcast, radioIO Classic RNB - 128kbps Stream
David Ruffin Junior, people.person.gender, Male
Rhythm and blues, music.genre.parent_genre, Black gospel
Feelin' Good, music.album.releases, Feelin' Good
Gentleman Ruffin, common.topic.notable_for, g.125c_wrrp
David Ruffin, music.artist.album, I've Lost Everything I've Ever Loved
David Ruffin, music.group_member.membership, m.01tl0mf
m.01w7xy7, music.group_membership.member, David Ruffin
Emile Berliner, people.deceased_person.cause_of_death, heart attack
David Ruffin, tv.tv_actor.guest_roles, m.0bw0ph5
Set 'em Up (Move in for the Thrill), music.recording.releases, Early Classics: Jimmy Ruffin
David Ruffin, common.topic.article, m.04qh87
Anna Records, music.record_label.artist, David Ruffin
Cardiovascular disease, people.cause_of_death.includes_causes_of_death, Cardiovascular disease
David Ruffin, people.deceased_person.place_of_death, Philadelphia
Rhythm and blues, music.genre.subgenre, Deathcountry
David \"Honeyboy\" Edwards, people.person.nationality, United States of America
David Ruffin, tv.tv_actor.guest_roles, m.0bw12v0
Disco, common.topic.webpage, m.09yd6g2
Jazz-funk, music.genre.parent_genre, Soul music
David Ruffin, music.artist.genre, Gospel music
Drug overdose, people.cause_of_death.includes_causes_of_death, Cocaine overdose
African American, common.topic.webpage, m.09w163n
David Ruffin, music.artist.album, Ruffin & Kendrick
Ruffin & Kendrick, music.album.primary_release, Ruffin & Kendricks
m.04ht6gc, people.place_lived.person, David Ruffin
David Ruffin, music.album.releases, David Ruffin
m.09yd6t5, common.webpage.topic, Disco
Stephen Melton, music.artist.track, Crazy
African Voices A Soulful Collection of Art and Literature, book.periodical.language, American English
Rhythm and blues, music.genre.subgenre, Soul music
My Whole World Ended, music.album.artist, David Ruffin
Heroin overdose, people.cause_of_death.parent_cause_of_death, Assassination by 'Accident'
Rosalind Ashford, music.artist.label, Chess Records
Disco, common.topic.webpage, m.09yd6t5
African American, common.topic.webpage, m.09y4fzb
African American, common.topic.webpage, m.0b478cr
The Temptations, film.film.country, United States of America
Chess Records, music.record_label.artist, Solomon Burke
David Ruffin, people.person.places_lived, m.03pm8w4
Kimberly Ruffin, common.topic.notable_for, g.125gv6s20
Nedra Ruffin, common.topic.notable_for, g.1258dvtcb
David Ruffin, people.deceased_person.cause_of_death, Drug overdose
20th Century Masters: The Millennium Collection: The Best of David Ruffin, music.album.artist, David Ruffin
m.0kqchp5, music.group_membership.member, David Ruffin
African American, common.topic.webpage, m.09x81jk
David Ruffin, music.artist.album, My Whole World Ended
David Ruffin, music.artist.album, g.121m2fx0
m.09yd6g2, common.webpage.topic, Disco
m.09ycdmp, common.webpage.topic, Disco
David Ruffin, broadcast.artist.content, radioIO Roots of Rock
Person, freebase.type_profile.published, Published
Your Love Was Worth Waiting For, music.recording.artist, David Ruffin
m.09y422x, common.webpage.topic, African American
David Ruffin, music.artist.album, g.11b7_m0lq8
David, music.album.release_type, Album
Rejoice and Shout, film.film.language, English Language
David Ruffin, broadcast.artist.content, CRIK FM - The Lynx Disco Classics
Nedra Ruffin, people.person.parents, David Ruffin
Pop music, music.genre.subgenre, Traditional pop music
Nedra Ruffin, common.topic.notable_types, Person
David Ruffin, people.person.profession, Singer
African American, common.topic.webpage, m.09xsqkm
Pop music, music.genre.subgenre, Psychedelic pop
David Ruffin, music.artist.album, David
David Ruffin, music.featured_artist.recordings, Your Love Was Worth Waiting For
Set 'em Up (Move in for the Thrill), music.recording.featured_artists, David Ruffin
Disco, common.topic.webpage, m.09xs5sz
David Ruffin, music.album.artist, David Ruffin
Cheryl Ruffin, people.person.parents, David Ruffin
I've Lost Everything I've Ever Loved, music.album.artist, David Ruffin
David \"Honeyboy\" Edwards, people.person.profession, Musician
m.03pm8w4, people.place_lived.person, David Ruffin
m.0k6llv_, people.sibling_relationship.sibling, David Ruffin
Jimmy Ruffin, people.person.profession, Singer
Ruffin & Kendrick, common.topic.article, m.05b5p11
Rejoice and Shout, film.film.country, United States of America
20th Century Masters: The Millennium Collection: The Best of David Ruffin, music.album.releases, 20th Century Masters: The Millennium Collection: The Best of David Ruffin
m.09ydb09, common.webpage.topic, Disco
Jimmy Ruffin, people.person.nationality, United States of America
Rhythm and blues, music.genre.subgenre, Hard bop
m.09ycznj, common.webpage.topic, Disco
Jimmy Ruffin, music.artist.album, I Am My Brother's Keeper
Cardiovascular disease, people.cause_of_death.includes_causes_of_death, heart attack
m.0b48y87, common.webpage.topic, African American
African American, common.topic.webpage, m.09y422x
David Ruffin, tv.tv_actor.guest_roles, m.0bv_g0p
Pop music, music.genre.subgenre, Pop punk
Ruffin & Kendrick, music.album.artist, Eddie Kendricks
David Ruffin, people.person.places_lived, m.04ht6gc
Chess Records, music.record_label.artist, David \"Honeyboy\" Edwards
m.0bw32gm, tv.tv_guest_role.episodes_appeared_in, David Ruffin/ Shirley Brown/ 9th Creation/ The Lockers
Gentleman Ruffin, music.album.release_type, Album
Rhythm and blues, music.genre.subgenre, Contemporary R&B
Heroin overdose, people.cause_of_death.parent_cause_of_death, Assassination by 'Suicide'
m.09yb5dx, common.webpage.topic, African American
David Ruffin, music.artist.label, Anna Records
David \"Honeyboy\" Edwards, people.person.gender, Male
African American, common.topic.webpage, m.09y44v_
David \"Honeyboy\" Edwards, music.artist.genre, Rhythm and blues
Kimberly Ruffin, people.person.parents, David Ruffin
Chess Records, music.record_label.artist, Robert Blair
Leo Taylor, people.deceased_person.cause_of_death, Drug overdose
Harry Womack, people.person.nationality, United States of America
Ralph Bass, people.deceased_person.place_of_death, New York City
20th Century Masters: The Millennium Collection: The Best of David Ruffin, music.album.primary_release, 20th Century Masters: The Millennium Collection: The Best of David Ruffin
m.03ph5xn, people.place_lived.person, David Ruffin
m.09y2t_h, common.webpage.topic, African American
African American, common.topic.article, m.04n7fny
African American, common.topic.webpage, m.09ym_fk
David \"Honeyboy\" Edwards, common.topic.notable_types, Musical Artist
Indie rock, music.genre.subgenre, Pop punk
King Floyd, people.deceased_person.cause_of_death, Stroke
David \"Honeyboy\" Edwards, music.artist.label, Chess Records
In My Stride, music.album.releases, In My Stride
Jimmy Ruffin, music.artist.genre, Rhythm and blues
Stephen Melton, music.producer.tracks_produced, The One
Michael Baisden, people.person.ethnicity, African American
m.0bvyxtt, tv.tv_guest_role.actor, David Ruffin
m.09w163n, common.webpage.topic, African American
Pop music, music.genre.subgenre, acoustic pop
David Ruffin, music.artist.album, So Soon We Change
Feelin' Good, music.album.genre, Rhythm and blues
Soul music, music.genre.subgenre, acoustic pop
David Ruffin, music.artist.contribution, m.0vp9r55
David Ruffin, common.topic.notable_for, g.125bpmtcr
20th Century Masters: The Millennium Collection: The Best of David Ruffin, music.album.release_type, Album
Eddie Bo, people.person.nationality, United States of America
Cheryl Ruffin, common.topic.notable_for, g.1255w6tg_
Rhythm and blues, music.genre.subgenre, Slow jam
m.0h4vgr7, people.marriage.spouse, David Ruffin
m.09ys0vx, common.webpage.topic, African American
m.09xrgdm, common.webpage.topic, Disco
Saturday Night Fever, film.film.language, English Language
Indie rock, music.genre.subgenre, Garage rock
m.09xvw6d, common.webpage.topic, Disco
Jimmy Ruffin, people.person.sibling_s, m.0k6llv_
Soul music, music.genre.subgenre, Funk
m.09w7g5_, common.webpage.topic, African American
m.09xtsdm, common.webpage.topic, Disco
Gentleman Ruffin, music.album.genre, Rhythm and blues
Jimmy Ruffin, broadcast.artist.content, radioIO Classic RNB
Soul music, music.genre.subgenre, Neo soul
David Ruffin, music.artist.label, Chess Records
Jimmy Ruffin, music.artist.genre, Pop music
David, music.album.genre, Rhythm and blues
Ruffin & Kendrick, music.album.artist, David Ruffin
Cardiovascular disease, people.cause_of_death.includes_causes_of_death, Myocardial Ischemia
David \"Honeyboy\" Edwards, people.person.profession, Singer
David Ruffin, people.person.spouse_s, m.0h4vgr7
African American, common.topic.webpage, m.09xsbrc
Rhythm and blues, music.genre.subgenre, Neo soul
Everything's Coming Up Love, music.album.artist, David Ruffin
m.0gy_wvc, film.performance.actor, David Ruffin
David Ruffin, music.artist.genre, Disco
I Couldn't Believe It, common.topic.notable_for, g.12558kz2_
Stephen Melton, music.artist.track, The One
David Ruffin, tv.tv_actor.guest_roles, m.0bw32gm
Sandra Ruffin, common.topic.notable_types, Person
Ruffin & Kendrick, music.album.release_type, Album
m.09y065m, common.webpage.topic, African American
David, music.album.releases, David
Soul Power, film.film.country, United States of America
Anna Records, music.record_label.artist, Barrett Strong
Eddie Kendricks, music.artist.album, Ruffin & Kendrick
I Am My Brother's Keeper, music.album.artist, Jimmy Ruffin
Sandra Ruffin, people.person.spouse_s, m.0h4vgr7
African American, common.topic.webpage, m.0b48y87
Turn Back the Hands of Time, music.recording.featured_artists, David Ruffin
Disco, common.topic.webpage, m.09yxch1
Stephen Melton, people.person.languages, English Language
Tony Clarke, music.artist.label, Chess Records
American English, language.language_dialect.language, English Language
David Ruffin, music.artist.album, David Ruffin
Cheryl Ruffin, common.topic.notable_types, Person
African American, common.topic.webpage, m.09wsrjm
I Couldn't Believe It, music.album.artist, David Ruffin
Gospel music, music.genre.subgenre, Southern gospel
Jimmy Ruffin, music.artist.label, Motown Records
David Ruffin, film.actor.film, m.0gy_wvc
Rhythm and blues, music.genre.subgenre, Smooth jazz
Jazz-funk, music.genre.parent_genre, Soul jazz
David Ruffin, people.person.children, Cheryl Ruffin
Synthpop, music.genre.subgenre, Synthpop
David Ruffin, common.topic.notable_types, Musical Album
Your Love Was Worth Waiting For, music.recording.featured_artists, David Ruffin
Set 'em Up (Move in for the Thrill), music.recording.artist, Jimmy Ruffin
Rhythm and blues, music.genre.subgenre, Glam punk
m.09xm556, common.webpage.topic, African American
Eddie Bo, people.deceased_person.cause_of_death, heart attack
m.0vp9r55, music.recording_contribution.contributor, David Ruffin
Jimmy Ruffin, people.person.gender, Male
m.09wwqj3, common.webpage.topic, African American
m.04m09rh, common.webpage.topic, RCA Records
Gentleman Ruffin, music.album.primary_release, Gentleman Ruffin
Rhythm and blues, music.genre.subgenre, Pop music
Solomon Burke, music.artist.label, Chess Records
Chess Records, music.record_label.artist, Bruce Robb
David Ruffin, people.person.ethnicity, African American
Jack L. Warner, people.person.nationality, United States of America
David Ruffin, music.artist.album, 20th Century Masters: The Millennium Collection: The Best of David Ruffin
Rhythm and blues, music.genre.subgenre, Soul jazz
m.09yxn4y, common.webpage.topic, Disco
Rhythm and blues, music.genre.parent_genre, Soul music
m.0b478cr, common.webpage.topic, African American
African American, common.topic.webpage, m.09ys4my
David Ruffin, music.album.genre, Rhythm and blues
David Ruffin, broadcast.artist.content, Classic Soul Network
Pop music, music.genre.subgenre, Indie pop
David, music.album.artist, David Ruffin
David Ruffin Junior, people.person.parents, David Ruffin
Eddie Kendricks, music.artist.label, RCA Records
Soul music, music.genre.subgenre, Southern soul
Chess Records, music.record_label.artist, Charles Stepney
Soul music, music.genre.subgenre, Deep Soul
Who I Am, music.album.artist, David Ruffin
Disco, common.topic.webpage, m.09y59cb
Cocaine overdose, people.cause_of_death.parent_cause_of_death, Drug overdose
African Voices A Soulful Collection of Art and Literature, book.periodical.subjects, African American
Eddie Bo, people.person.ethnicity, African American
m.0bw12v0, tv.tv_guest_role.actor, David Ruffin
David Ruffin, music.artist.album, Me 'n Rock 'n Roll Are Here to Stay
m.0bvt_vx, tv.tv_guest_role.actor, David Ruffin
Ruffin & Kendrick, music.album.genre, Soul music
Classical music, music.genre.subgenre, Pop music
Stephen Melton, music.artist.track, Miserable With You
Rhythm and blues, music.genre.recordings, Vegas Lights
Rhythm and blues, music.genre.subgenre, Trash rock
African American, common.topic.article, m.0x6k
Feelin' Good, music.album.genre, Soul music
African American, common.topic.webpage, m.09w7g5_
m.09y59cb, common.webpage.topic, Disco
David Ruffin, people.person.place_of_birth, Whynot, Mississippi
Disco, common.topic.webpage, m.09ydb09
m.0h4vgr7, people.marriage.spouse, Sandra Ruffin
Chess Records, music.record_label.artist, David Ruffin
David Ruffin, music.artist.album, Who I Am
Cocaine overdose, people.cause_of_death.parent_cause_of_death, Assassination by 'Accident'
radioIO Classic RNB, broadcast.content.broadcast, radioIO Classic RNB - 64kbps Stream
David Ruffin Junior, common.topic.notable_for, g.1258j5y1m
African American, common.topic.notable_for, g.1258ch7sf
David Ruffin, common.topic.notable_types, Musical Artist
Rhythm and blues, music.genre.subgenre, Garage rock
m.0bv_k52, tv.tv_guest_role.actor, David Ruffin
Jimmy Ruffin, music.artist.genre, Soul music
David Ruffin, music.artist.album, Everything's Coming Up Love
m.0jmyp4t, film.personal_film_appearance.person, David Ruffin
m.0bw32gm, tv.tv_guest_role.actor, David Ruffin
In My Stride, common.topic.article, m.05b2yms
Soul music, music.genre.subgenre, Latin soul
Your Love Was Worth Waiting For, music.recording.tracks, Your Love Was Worth Waiting For
African American, common.topic.webpage, m.09wwv2n
Kimberly Ruffin, people.person.gender, Female
Turn Back the Hands of Time, music.recording.releases, Early Classics: Jimmy Ruffin
Me 'n Rock 'n Roll Are Here to Stay, music.album.releases, Me 'n Rock 'n Roll Are Here to Stay
Disco, common.topic.webpage, m.09xtsdm
David Ruffin, film.person_or_entity_appearing_in_film.films, m.0jmyp4t
m.09yxch1, common.webpage.topic, Disco
m.09y4fzb, common.webpage.topic, African American
m.0b46zq1, common.webpage.topic, African American
Stephen Melton, music.artist.track, Throwing Rocks
Eddie Kendricks, people.person.ethnicity, African American
David Ruffin Junior, common.topic.notable_types, Person
Disco, common.topic.webpage, m.09yxn4y
m.0h4vgrl, people.marriage.spouse, David Ruffin
Jazz-funk, music.genre.parent_genre, Rhythm and blues
Set 'em Up (Move in for the Thrill), music.recording.tracks, Set 'em Up (Move in for the Thrill)
African American, common.topic.webpage, m.09ys0vx
Solomon Burke, broadcast.artist.content, ACB Radio Interactive
Disco, common.topic.webpage, m.09ycznj
Whynot, Mississippi, location.location.people_born_here, David Ruffin
Chess Records, music.record_label.artist, David A. Martin
David Ruffin, people.person.gender, Male
m.09ykxgj, common.webpage.topic, Disco
Cheryl Ruffin, people.person.gender, Female
David, music.album.genre, Soul music
Stephen Melton, people.person.nationality, United States of America
Blues, music.genre.subgenre, Americana
David \"Honeyboy\" Edwards, people.person.ethnicity, African American
m.0bv_g0p, tv.tv_guest_role.episodes_appeared_in, The Spinners/ David Ruffin
Ruffin & Kendrick, music.album.genre, Rhythm and blues
Soul Power, film.film.language, English Language
David \"Honeyboy\" Edwards, music.artist.genre, Soul music
African American, common.topic.webpage, m.09x2nkc
Rosalind Ashford, music.artist.label, Motown Records
David Ruffin, music.artist.label, RCA Records
Bobby Bland, people.deceased_person.place_of_death, Memphis
David Ruffin, common.topic.notable_for, g.1259213vp
m.0b48pfv, common.webpage.topic, African American
David Ruffin, music.artist.album, I Am My Brother's Keeper
David, music.album.primary_release, David
m.0bv_k52, tv.tv_guest_role.episodes_appeared_in, David Ruffin
Cardiovascular disease, people.cause_of_death.parent_cause_of_death, Cardiovascular disease
David Ruffin, music.artist.genre, Soul music
Disco, common.topic.webpage, m.09ykxgj
Sandra Ruffin, people.person.gender, Female
Kimberly Ruffin, common.topic.notable_types, Person
David Ruffin, music.group_member.membership, m.0460hlb
Percussion, music.instrument.variation, Drums
Your Love Was Worth Waiting For, music.recording.artist, Jimmy Ruffin
m.09y44v_, common.webpage.topic, African American
Gentleman Ruffin, music.album.releases, Gentleman Ruffin
David, common.topic.notable_for, g.1259v00s6
African American, common.topic.webpage, m.09wzm16
m.09wwv2n, common.webpage.topic, African American
m.0bw0ph5, tv.tv_guest_role.episodes_appeared_in, Rufus/ David Ruffin
David Ruffin, people.person.profession, Musician
Chess Records, music.record_label.artist, Harvey Fuqua
m.0460hlb, music.group_membership.member, David Ruffin
Charles Stepney, people.person.nationality, United States of America
David Ruffin, music.album.release_type, Album
Gentleman Ruffin, common.topic.article, m.05b005y
Your Love Was Worth Waiting For, music.recording.releases, Early Classics: Jimmy Ruffin
African American, common.topic.webpage, m.09y065m
m.0bvyxtt, tv.tv_guest_role.episodes_appeared_in, Ruffin & Kendrick/ Dana Dane
Drug overdose, people.cause_of_death.includes_causes_of_death, Heroin overdose
African American, common.topic.webpage, m.09yb5dx
David Ruffin, music.group_member.instruments_played, Drums
Disco, common.topic.webpage, m.09xxvmq
The Temptations, film.film.language, English Language
Michael Baisden, people.person.nationality, United States of America
David Ruffin, tv.tv_actor.guest_roles, m.0bv_k52
Stephen Melton, music.artist.track, Gravity
African American, common.topic.webpage, m.09xm556
David Ruffin, people.person.places_lived, m.03ph5xn
heart attack, people.cause_of_death.parent_cause_of_death, Cardiovascular disease
m.09xsbrc, common.webpage.topic, African American
Feelin' Good, music.album.artist, David Ruffin
Me 'n Rock 'n Roll Are Here to Stay, music.album.artist, David Ruffin
m.09ys4my, common.webpage.topic, African American
David, common.topic.article, m.055wtdd
20th Century Masters: The Millennium Collection: The Best of David Ruffin, common.topic.notable_types, Musical Album
Rhythm and blues, music.genre.subgenre, Punk blues
m.09xs5sz, common.webpage.topic, Disco
African American, common.topic.webpage, m.09wtdky
m.09w77c3, common.webpage.topic, RCA Records
m.09wtdky, common.webpage.topic, African American
David Ruffin & Eddie Kendricks, music.musical_group.member, m.01w7xy7
m.0k6llv_, people.sibling_relationship.sibling, Jimmy Ruffin
Rhythm and blues, music.genre.subgenre, acoustic pop
Rhythm and blues, music.genre.subgenre, Jazz-funk
Anna Records, music.record_label.artist, Anna Gordy Gaye
David Ruffin, tv.tv_actor.guest_roles, m.0bvyxtt
David Ruffin, tv.tv_actor.guest_roles, m.0bvt_vx
David Ruffin, music.artist.album, Feelin' Good
m.01tl0mf, music.group_membership.member, David Ruffin
Soul music, music.genre.subgenre, Jazz-funk
Michael Baisden, broadcast.content.location, United States of America
David Ruffin, music.artist.genre, Pop music
Disco, common.topic.webpage, m.09xrgdm
African American, common.topic.webpage, m.09y4_xz
I Couldn't Believe It, music.album.artist, Eddie Kendricks
m.09x2nkc, common.webpage.topic, African American
WBAV, broadcast.content.artist, Minnie Riperton
David Ruffin, music.group_member.membership, m.0kqchp5
David, common.topic.notable_types, Musical Album
Feelin' Good, music.album.primary_release, Feelin' Good
David Ruffin, people.person.children, David Ruffin Junior
African American, common.topic.webpage, m.09wwqj3
m.04m201l, common.webpage.topic, Warner Bros. Records
m.09x81jk, common.webpage.topic, African American
Drug overdose, people.cause_of_death.parent_cause_of_death, Assassination by 'Suicide'
David Ruffin, music.album.primary_release, David Ruffin
David Ruffin, music.album.genre, Soul music
Gentleman Ruffin, music.album.genre, Soul music
Gentleman Ruffin, music.album.artist, David Ruffin
m.04309b6, common.webpage.topic, SoulfulClassics.com
Rhythm and blues, music.genre.subgenre, Power pop
David \"Honeyboy\" Edwards, music.artist.genre, Jazz
Drums, music.instrument.family, Percussion
m.09wns0y, common.webpage.topic, Warner Bros. Records
Soul music, music.genre.subgenre, Rhythm and blues
David Ruffin, music.artist.album, In My Stride
Dance music, music.genre.subgenre, Pop music
Jimmy Ruffin, broadcast.artist.content, radioIO Disco Hits
David Ruffin, music.featured_artist.recordings, Turn Back the Hands of Time
20th Century Masters: The Millennium Collection: The Best of David Ruffin, music.album.album_content_type, Compilation album
m.09wzm16, common.webpage.topic, African American
m.0bvt_vx, tv.tv_guest_role.episodes_appeared_in, David Ruffin/ Heatwave
David Ruffin, music.artist.album, I Couldn't Believe It
Ruffin & Kendrick, music.album.releases, Ruffin & Kendricks
I Am My Brother's Keeper, music.album.artist, David Ruffin
David Ruffin, music.artist.label, Motown Records
Pop music, music.genre.subgenre, Synthpop
David Ruffin, common.topic.article, m.0562s04
David Ruffin, music.artist.genre, Rhythm and blues
Alan Gerber, music.artist.label, Chess Records
So Soon We Change, music.album.artist, David Ruffin
Gospel music, music.genre.subgenre, Soul music
African American, book.periodical_subject.periodicals, African American Review
Eddie Kendricks, people.person.nationality, United States of America
Dancin' in the Street, film.film.country, United States of America
Jazz-funk, music.genre.parent_genre, Jazz

Answer: Drug overdose