France, Aug. 24 -- French investigators believe they have identified a key suspect in the case of four men whose bodies were pulled from the Seine earlier this month

The mystery surrounding the grim discovery of four bodies in the River Seine earlier this month is beginning to clear, as French prosecutors have now charged a young homeless man with their murders.

The man, thought to be in his twenties and of North African origin, was brought before a judge in Creteil on Sunday morning following four days in police custody.

His precise identity and nationality remain unclear, but investigators believe he had been living rough along the river.

Prosecutors have asked for him to be held in pre-trial detention, launching a full judicial inq...