Madani "Dany" Bouhouche was born on June 14, 1952, in Brussels, Belgium. His father was Algerian, and his mother was Belgian. Growing up in this multicultural background, he held views that leaned towards neo-Nazism, which was unusual given his parentage.

He began his career in law enforcement with the Bijzondere Opsporings Brigade (BOB), a specialized detective branch of the Rijkswacht or Gendarmerie. This was a challenging time for law enforcement in Belgium, which faced a fragmented system. Bouhouche quickly became involved in illegal activities alongside some of his colleagues in the police force.

As he continued his work with the BOB, Bouhouche's actions raised suspicions. In 1981, he was caught attempting to electronically surveil another police unit. This led to a reassignment to regular duty instead of his detective role. The same year, he was involved in a burglary where he stole firearms, including machine guns, from a police facility.

Bouhouche eventually left the Gendarmerie. He briefly operated a private detective bureau before buying a gun shop. Despite his small stature, he enjoyed various hobbies such as mountaineering and skydiving. However, his main passion was firearms. He took part in private military training with far-right acquaintances, which further shaped his life choices.

Over the years, numerous conflicts arose around Bouhouche’s actions and associations. Some police officials were targeted in violent attacks that many believed were linked to him. Despite these events, he maintained his position and continued to engage in dangerous and illegal activities.

Madani Bouhouche was involved in serious criminal activities that led to his arrest and conviction for murder. He was suspected of being involved in multiple crimes, including robbery and extortion. Bouhouche first came under suspicion in January 1986 when he was arrested for the murder of Juan Mendez, a weapons engineer. At the time of Mendez's death, Bouhouche was found in the home of the victim, leading investigators to question him. A pistol, believed to be connected to the murder, was found in Bouhouche's possession, but he was released due to challenges in the evidence.

After fleeing to Belgium, Bouhouche murdered a diamond dealer, which he claimed was a part of debt collection gone wrong. He was later extradited back to Belgium, where he faced charges for the murder of the diamond dealer and another security guard connected to a gold robbery. During his trial, which became one of the longest in Belgian history, Bouhouche was convicted of both murders.

Over time, suspicion grew that Bouhouche might have links to the Brabant killers, a group involved in a string of violent robberies during the 1980s. Circumstantial evidence connected Bouhouche’s crew to the Brabant killers, including similar methods of operation and shared weapons. Despite these suspicions, clear links were hard to establish. Bouhouche was released on parole in 2000 and moved to a quiet area in the French Pyrenees.

He lived a secluded life until his accidental death in November 2005 while trimming a tree. His death caused some controversy regarding the ongoing investigation into the Brabant killers, as authorities had not completely ruled him out as a suspect in those unsolved crimes.