[1] The Canadian journalists Julian Sher and William Marsden described Endstra: "A slick dresser, he liked expensive suits, big open collars and shiny black shoes.
With his short-cropped, salt-and-pepper hair, pudgy face and permanent tan, he had the aura of a highly polished middle-aged tycoon".
The case was closed when Endstra made a deal with public prosecutors in Amsterdam worth about €450,000 to prevent criminal prosecution.
[2] Dutch criminal John Mieremet claimed in 2002 that, together with Sam Klepper, he was brought into contact with Endstra via Heineken-kidnapper Willem Holleeder.
[1] Mieremet stated that Endstra was the "banker to the underworld" who laundered millions via his real estate holdings and Holleeder was the "guardian of the bank vault".
When another person involved in the kidnapping of Heineken, Cor van Hout, was murdered in 2003, informants told the Amsterdam police that Endstra would be next.
According to a story in Dutch newspaper Het Parool in March 2006, Endstra had on more than one occasion talked to police about the criminal environment of Amsterdam.