A sixth person has been arrested in the murder probe surrounding the death of Gloucester man Neil Bennett.
The 50-year-old was stabbed on Park End Road on the evening of Saturday, July 27, close to an entrance to Gloucester Park.
Five people have already been arrested, four of which are charged with murder and are due to appear at Bristol Crown Court tomorrow for a preliminary hearing.
A sixth arrest was made yesterday. The 33-year-old Gloucester man was arrested on suspicion of conspiracy to commit murder and bailed to attend Gloucester police station on October 16, pending further inquiries.
It comes as detectives investigating the fatal stabbing issued images of a jacket they are eager to trace.
Anyone who has found the hooded jacket, with a distinctive lined pattern, or knows where it is, is being urged to contact police.
Detective Inspector Ian Ginn said: "We're appealing to people primarily in the area of Gloucester Park who may have discovered this jacket, other clothing or in fact any other objects since the incident.
"These items may have been discarded in gardens or other hidden areas of land in the last few weeks so I would appeal to people to check their property just in case.
"We're still interested in any CCTV from the area so if you have a camera that has footage from that weekend we want to hear from you too."
The four people already charged with murder are Ricky Lee James, 33 and of Spa Villas, Montpellier, Lucy Dowdall, 19 and of Spa Villas, Montpellier, Christopher Peter Horn, 29 and of Denmark Road, and Tyler Johnson, 25 and of no fixed abode.
A 38-year-old man from Gloucester, who was also arrested on suspicion of murder, remains on police bail to attend Gloucester police station on September 4.
Anyone who can help police with the investigation should call 101 or Crimestoppers anonymously on 0800 555 111, quoting incident 532 of July 27.