Question: Which band member of Dream Theater was named the second of the 100 Greatest Metal Guitarists in 2009?
Context: John Christ (born John Wolfgang Knoll on February 19, 1965) is a musician best known as the original guitarist for the metal band Danzig.  He has been known for his bluesy hard rock sound and frequent use of the pinch harmonic.  Christ was ranked 63rd in "Guitar World's" list of 'The 100 Greatest Metal Guitarists'. Kirk Lee Hammett (born November 18, 1962) is an American musician who has been lead guitarist and a contributing songwriter for the heavy metal band Metallica since 1983.  Before joining Metallica he formed and named the band Exodus.  In 2003, Hammett was ranked 11th on "Rolling Stone"<nowiki>'</nowiki>s list of The 100 Greatest Guitarists of All Time.  In 2009, Hammett was ranked number 15 in Joel McIver's book "The 100 Greatest Metal Guitarists". This is a complete list of songs by American progressive metal band Dream Theater.  Dream Theater was formed in 1985 by guitarist John Petrucci, bassist John Myung, and drummer Mike Portnoy.  The band's current line-up consists of Petrucci, Myung, keyboardist Jordan Rudess, vocalist James LaBrie, and drummer Mike Mangini.  As of 2016, Dream Theater has released thirteen studio albums. Michael Stephen Portnoy (born April 20, 1967) is an American drummer primarily known as the former drummer, backing vocalist, and a co-founder of the progressive metal/rock band Dream Theater.  Known for his technical skill as a drummer, Portnoy has won 30 awards from the "Modern Drummer" magazine.  He co-produced six Dream Theater albums with guitarist John Petrucci, starting from "" through "Black Clouds and Silver Linings".  From "A Change of Seasons" onwards, Portnoy had been writing a significant amount of Dream Theater's lyrics.  He is the second youngest person (after Neil Peart) to be inducted into the "Modern Drummer's" "Hall of Fame", at 37 years of age. George Lynch (born September 28, 1954) is an American hard rock guitarist and songwriter.  Lynch is best known for his work with 80's "hair metal" band, Dokken, and his post-Dokken solo band, Lynch Mob.  Lynch is considered to be one of the most influential and famous 1980s metal guitarists.  He is known for his unique playing style and sound.  He is ranked #68 on "100 Greatest Guitarists Of All Time" by Guitar World magazine and is also ranked #10 on "Top 10 Metal Guitarists Of All Time" by Gibson. John Peter Petrucci (born July 12, 1967) is an American guitarist, composer and producer.  He is best known as a founding member of the progressive metal band Dream Theater.  With his former bandmate Mike Portnoy, he has produced all Dream Theater albums from 1999's "" to 2009's "Black Clouds & Silver Linings", and has been the sole producer of the band's albums released since Portnoy's departure in 2010.  Petrucci was named as the third player on the G3 tour six times, more than any other invited guitarist.  Joel McIver's 2009 book "The 100 Greatest Metal Guitarists" ranks Petrucci second, after Dave Mustaine.  He was also named as one of the "Top 10 Greatest Guitar Shredders of All Time" by "GuitarOne" magazine.  In 2012, Petrucci was ranked the 17th greatest guitarist of all time by a "Guitar World" magazine reader's poll. A Sort of Homecoming is a live album recorded at various locations (primarily The Theater at Madison Square Garden in New York City) by progressive metal band Dream Theater and released by the Dream Theater International Fan Club; thus, it is not part of the official Dream Theater discography.  It is named after the U2 song of the same name off their album "The Unforgettable Fire". Daron Vartan Malakian (Armenian: Տարօն/Տարոն Վարդան Մալաքեան, born July 18, 1975) is an Armenian–American singer-songwriter, multi-instrumentalist, and record producer.  He is best known as the guitarist, songwriter and second vocalist of the rock band System of a Down and as the lead vocalist, lead guitarist and songwriter of the band Scars on Broadway.  Like the rest of the Hollywood-based band System of a Down, he is of Armenian ancestry, but he is the only member to have been born in the United States.  Daron Malakian is known for his distinctive playing and is ranked 40th in Loudwire's list of "Top 50 Hard Rock + Metal Guitarists Of All Time" and #11 in MusicRadar's poll, "The 20 Greatest Metal Guitarists Ever".  He is placed 30th in Guitar World's List of The 100 Greatest Heavy Metal Guitarists of All Time. Adam Thomas Jones (born January 15, 1965) is a three-time Grammy Award-winning American musician and visual artist, best known for his position as the guitarist for Tool.  Jones has been rated the 75th Greatest Guitarist of all time by the "Rolling Stone" and placed ninth in "Guitar World's" Top 100 Greatest metal Guitarists.  Jones is also the director of the majority of Tool's music videos. The discography of Dream Theater, an American progressive metal/rock band, consists of thirteen studio albums, one extended play, eight live albums, one compilation album, eight video albums, twenty-seven singles, and eleven music videos.  The band was formed under the name Majesty by guitarist John Petrucci, bassist John Myung, and drummer Mike Portnoy while the three of them were attending Berklee College of Music in September 1985.  The trio added keyboard player Kevin Moore and vocalist Chris Collins in order to complete their lineup.  After the band released a demo entitled "Majesty Demos", Collins was replaced by Charlie Dominici in November 1987.
Answer: John Petrucci