A French judge on Sunday charged a homeless man for the murders of four men whose bodies were found in the River Seine just outside Paris, prosecutors said.
The bodies, some partially naked, were found on August 13 in the river in the southeastern suburb of Choisy-le-Roi.
A passenger on a passing train saw one body floating in the river and the others were found later.
The suspect, who has not yet been publicly identified, was detained on Wednesday and placed in pre-trial detention, the man's lawyer, Antoine Ory, said.
A prosecution statement said that while his identity was 'uncertain', he was a 'homeless man aged about 20' whose nationality was 'not established'.
