British police in Northampton are continuing an investigation into the apparent murder of a 22-year-old Latvian man whose body was found May 30.

The body of Ritvars Kozans was found at about 9:40 p.m. in a garbage bin storage area on Woolmonger Street in Northampton. A post-mortem examination showed a suspicious head wound, according to local media reports.

Kozans, an electrician, is said to have visited several pubs and clubs the night of May 29 and early on May 30.

Two men and two women were detained by police, but later were released on bail.

Police are seeking the public’s assistance. Anyone with information is asked to telephone +44 08453 700 700.