Police appeal to friends of Anthony Cavanagh's killer
Detectives investigating the murder of a Liverpool sailor five years ago are urging the killer's friends to hand him in.
Anthony Cavanagh, 22, was on shore leave from HMS Cardiff on 24 September 2005 when he was punched as he left the Walkabout bar in Concert Square.
He died after being in a coma for 11 days in Walton Neurological Centre.
Merseyside Police's Det Ch Insp Mark Guinness said the killer's friends should "search their conscience".
"Look at the tragic consequences that this has had for Anthony's family," he added.
"Contact us with the information that will help us progress this investigation."
Mr Cavanagh had accidentally bumped into a man as he went into the Walkabout bar and got into a brief argument.
As he and his friends were leaving, they were confronted by a group of men.
Mr Cavanagh was then punched in the chin and fell backwards, suffering serious head injuries.
Det Ch Insp Guinness appealed for anyone who witnessed the attack to come forward.
He said he particularly wanted to speak to two men who called the police's incident room the day after the assault.
"They called us with information, but terminated their call part way through," he said.
"If anyone has information, but is worried about coming forward, then I can assure them that we have special measures which can be put in place to ensure the utmost confidentiality," he added.