Philip Carlo (April 18, 1949 – November 8, 2010) was a journalist and best selling biographer of Thomas Pitera, Richard Kuklinski, Anthony Casso, and Richard Ramirez.
 Carlo suffered from amyotrophic lateral sclerosis (ALS), commonly known as "Lou Gehrig's Disease".
 He was bound to a wheelchair and respirator, but retained his ability to speak normally during his lifetime.
 He died of the disease on November 8, 2010 at age 61.
Robert Shulman (March 28, 1954 – April 13, 2006) was an American serial killer.
 Shulman, a postal worker from Hicksville, New York on Long Island, was convicted of murdering five prostitutes between 1991 and 1996, the year when he was arrested.
Phillip Carl Jablonski (born January 3, 1946) is an American serial killer convicted of killing five women in California and Utah between 1978 and 1991.
Stephen Oladimeji K. Akinmurele (16 March 1978 – 28 August 1999) was a British suspected serial killer who was charged with murdering five elderly people between 1995 and 1998.
 Akinmurele confessed to a number of the murders but committed suicide before his trial.
 Police believe he may have also been responsible for two further killings.
 The case is noted for Akinmurele's long-standing hatred of elderly people.
Richard Leonard Kuklinski (April 11, 1935 – March 5, 2006) was an American contract killer and serial killer who was convicted of murdering five people, though he likely killed at least several dozen more.
 He was associated with members of the American Mafia, namely the DeCavalcante crime family of Newark, New Jersey, and the Five Families of New York City.
Larry Eyler (December 21, 1952 – March 6, 1994) was an American serial killer convicted and sentenced to death in Illinois for the 1984 murder and dismemberment of 15-year-old Daniel Bridges.
Claude Lastennet (born January 19, 1971) is a French serial killer who was convicted of murdering five elderly women between August 1993 and January 1994.
Cody Alan Legebekoff (born  1990 ) is a Canadian serial killer convicted in 2014 by the British Columbia Supreme Court of murdering three women and a teenage girl, between 2009 and 2010, in or near the City of Prince George, British Columbia.
 This trial of one of Canada's youngest serial killers drew national attention.
Carlton Michael Gary (born September 24, 1950) is an American serial killer convicted of the murders of elderly women in Columbus, Georgia from 1977-1978.
William Patrick Fyfe (born February 27, 1955) is a Canadian serial killer convicted of killing five women in the Montreal area of Quebec, although he claims to have killed four others.
 He allegedly killed his first victim in 1979 at age of 24.

Question: Which biography written by Philip Carlo is based on an American contract killer and serial killer convicted of murdering five people?
Answer: Richard Kuklinski