Why the assassination of underworld kingpin Stanley Hillis still raises questions 15 years later

Stanley Hillis, a prominent leader in the Amsterdam underworld, was assassinated on February 21, 2011, while attending a meeting in the Watergraafsmeer district. Despite undercover police officers monitoring the scene from a nearby trailer, the killers managed to escape due to a series of law enforcement communication blunders. The case remains significant in Dutch criminal history because of Hillis's extensive influence and the controversial failure of the police to prevent the hit or capture the suspects.