A man has been charged with murder after a body was found in a river more than a year ago.
The body of Joe Pooley, from Ipswich, was found in the River Gipping in the town on 13 August 2018.
A post-mortem examination revealed the 22-year-old, who had learning difficulties, had drowned.
Sebastian Smith, 34, of no fixed address, has been remanded in custody and will appear at Ipswich Crown Court on Friday.
Three other people - a 25-year-old woman, a 29-year-old woman and a 29-year-old man - have been arrested by Suffolk Police on suspicion of murder and released under investigation.