Ari Boulogne, the unrecognized child of Alain Delon and the German singer Nico, was found dead in his Paris home. One woman was taken into custody for failing to assist a person in danger.
The investigation aims to "clarify the circumstances in which the death of the victim, who was hemiplegic", and aged 60 years, may have occurred. Ari recounted his chaotic life, dominated by an absence, that of the father, in a book published in 2001.