Question: Zsa Zsa Speck took part of his stage name from which mass murderer?

Context paragraphs:
Shell Lake murders: The Shell Lake murders is the name of a single mass murder incident committed by Victor Ernest Hoffman (b. 1946, died May 21, 2004) in Shell Lake, Saskatchewan, Canada, during the early morning of August 15, 1967.  Nine people, all members of James Peterson's family, were shot in the head by a man who was later called "Canada's worst random mass murderer".

William Scorpion: Thanakorn Scorpion (born 14 November 1961), better known by his stage name William Scorpion, is a Singaporean Cantopop and Mandopop singer and equestrianism coach.  He is widely viewed as a homegrown veteran of Singapore's Mandopop night-scene, often labelled as a local icon.  The press continue to credit him as Singapore's Mandopop King, who brought this genre of music to prominence.  In 2013, Scorpion resigned as Executive Director of Shanghai Dolly and left the club on 28 February 2013 so as to perform on an ad hoc basis and teach horse-riding in the day at the National Equestrian Centre.  He launched his biography-travelogue, "Sanuk Jing Jing Na!" , at the club venue, Zouk, on 30 May to mark 30 years in show business.  He performed with Queen Inc band and his musician-daughter, Zsa Zsa Scorpion.

Richard Speck: Richard Benjamin Speck (December 6, 1941 – December 5, 1991) was an American mass murderer who systematically tortured, raped, and murdered eight student nurses from South Chicago Community Hospital on the night of July 13-14, 1966.

Bad Karma (2002 film): Bad Karma is a 2002 film directed by John Hough.  Patsy Kensit stars as a mental patient who believes she is the reincarnated lover of Jack the Ripper, and that her psychiatrist (Patrick Muldoon) is the reincarnated mass murderer.  Damian Chapa and Amy Locane are also in the film, which is adapted by Randall Frakes from the 1997 Douglas Clegg novel of the same name.

Friday the 13th Part VI: Jason Lives: Friday the 13th Part VI: Jason Lives (also known on screen as Jason Lives: Friday the 13th Part VI) is a 1986 American slasher film and the sixth installment in the "Friday the 13th" film series.  It was written and directed by Tom McLoughlin.  Although the original concept called for Tommy Jarvis, the protagonist of "" and "", to become the new villain, the poor fan reception of "A New Beginning" prompted the producers to bring back Jason Voorhees as the series' antagonist.  In resurrecting Jason, McLoughlin made Jason an explicitly supernatural force for the first time in the series, depicting him as being raised from the dead via electricity; this version of Jason, an undead mass murderer and more powerful superhuman, would become the standard depiction for the rest of the films, until 2009's remake.  The film likewise broke with many other series conventions, introducing metahumor and action film elements including shootouts and car chases.

Chicago Massacre: Richard Speck: Chicago Massacre: Richard Speck is a 2007 horror film directed by Michael Feifer.  The film is based on the true story of 1960s mass murderer Richard Speck.

James Brown (Australian pastoralist): James Brown (ca.1819 – 7 February 1890) was a Scottish-born pastoralist of the South East of South Australia and a suspected mass murderer of Aboriginal people.  His name is noted for the philanthropy exercised in that name by his widow, Jessie Brown.  Two charitable institutions — the Kalyra Consumption Sanitorium at Belair and Estcourt House, near the Grange were founded in his memory, and out of the proceeds of his estate.

Eichmann Before Jerusalem: Eichmann Before Jerusalem: The Unexamined Life of a Mass Murderer (German: Eichmann vor Jerusalem – Das unbehelligte Leben eines Massenmörders ) is a 2011 book by Bettina Stangneth.  It challenges Hannah Arendt's portrayal of Adolf Eichmann in "" as an unintelligent and thoughtless bureaucrat.  Stangneth proposes that Eichmann's actions were the results of intentional, well-thought-out decisions of a man who strongly subscribed to Nazi ideology and who took pride in his actions.

Queho: Queho (born around 1880; his name was also spelled Quehoe on his grave or Quejo in other sources) was a Native American outlaw and renegade whose exploits became part of Nevada legend.  Many deaths were blamed on Queho and so he earned the title of being the first mass murderer in the state of Nevada and "The mad Indian"

Zsa Zsa Speck: Zsa Zsa Speck (real name Perry Pandrea) was the keyboardist for Marilyn Manson and the Spooky Kids in 1989, as well as co-founder of the band.  His stage name came from the combination Zsa Zsa Gabor and Richard Speck, following the band's naming style of combining the names of a fashion icon and mass murderer.  He was replaced by Madonna Wayne Gacy on keyboards later in 1989.

Supporting paragraphs: Zsa Zsa Speck Richard Speck
Answer: Richard Benjamin Speck