About Sam Klepper
Lived 1960 – 2000 (aged 40). Sam Klepper was a Dutch criminal.
Simon "Sam" Klepper (29 April 1960 – 10 October 2000) was a Dutch gangster.
"Spic and Span" Klepper was born in Amsterdam into a working-class family. He started to work in the 1980s for Klaas Bruinsma as a thief and in charge of his slot machines. In the early 1980s, he formed a close partnership with John Mieremet, initially as part of a gang called De Denkers. In the 1990s, Klepper and Mieremet broke away from De Denkers to work as bank robbers and hitmen. The nickname for Mieremet and Klepper were "Spic & Span" (a type of cleaning product) owing to their ability to commit crimes so cleanly that the police never had enough evidence to charge with any offense. On August 29, 1991, Klepper was arrested together with Mieremet for the illegal possession of guns. Both were sentenced to a year and a half in prison.
Hells Angels Klepper joined the Amsterdam chapter of the Hells Angels and rose up to the rank of "prospect" (the second level in an outlaw biker club). The Canadian journalists Julian Sher and William Marsden described Klepper as "an infamous and vicious Dutch bank robber, arms dealer and drug trafficker who had made more than enough enemies in his time, but nobody had ever dared to touch him because he had the backing of the Hells Angels". Klepper was known as "the Godfather of the Amsterdam underworld".
Murder On 10 October 2000, Klepper was standing outside of his apartment in the rain along with his Serbian bodyguard. An assassin walked up to him with a submachine gun hidden under his umbrella, which he pulled out to shoot Klepper dead. Klepper's bodyguard set off in a wild chase through the streets of Amsterdam and through a marketplace, exchanging shots with the assassin. An eighty-year-old man out for walk was caught in the cross-fire and was badly wounded. The assassin got into a waiting car and fled.
The president of the Amsterdam chapter of the Hells Angles, Willem van Boxtel, gave Klepper the posthumous promotion to a "full patch" member. He had the largest Hells Angel funeral ever in the Netherlands attended by Hells Angels members from all over Europe. On 17 October 2000, a huge procession of motorcycle-riding Hells Angels escorted Klepper's hearse down the streets of Amsterdam, stopped in front of the police station to set off fireworks, resumed the funeral march and set off more fireworks when Klepper was finally buried. On 4 July 2019, Willem Holleeder was found guilty of ordering Klepper's murder.
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Important facts
People in Sam Klepper's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Sam Klepper's
Frequently asked questions
Who was Sam Klepper?
Dutch criminal (1960–2000)
When was Sam Klepper born?
Sam Klepper was born on 29 April 1960 in Amsterdam.
When did Sam Klepper die?
Sam Klepper died on 10 October 2000.
What was Sam Klepper's occupation?
Sam Klepper was a criminal.
What nationality was Sam Klepper?
Sam Klepper was Dutch.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Sam Klepper. https://biography.guide/sam-klepper/
MLA: "Sam Klepper." Biography.guide, https://biography.guide/sam-klepper/.
Chicago: "Sam Klepper." Biography.guide. https://biography.guide/sam-klepper/.
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