Police have renewed an appeal for information on the fourth anniversary of a gun murder.Patrick Dill, who was 26, was shot outside his home on Crossland Lane, Pembroke, at around 10.45pm on May 21, 2016 as he got into a car to go to a party.Detective Sergeant Jason Smith said yesterday that the inquiry into the killing was at a “critical stage” — but investigators needed assistance from witnesses to “help bring closure to his family and friends”.He added: “We are aware that members of our community who have information crucial to our investigation may be reluctant to come forward.“However, this information is invaluable to piecing together the strands that can tie everything together.”Mr Smith said: “Patrick’s family are still grieving and are looking for answers as to why he was taken away from them.”He told people who might have information: “There are residents in the Crossland neighbourhood who witnessed and saw activity that aroused their suspicions on the night of the murder and we are appealing for your assistance.“No matter how insignificant you may think the information is, you can help in solving this murder.”Mr Dill, the father of two girls, worked in IT at an insurance company and earlier worked at the Elbow Beach Hotel in Paget.He was killed a week before his 27th birthday and was first gun death of 2016.Police said at the time that Mr Dill had no links to gangs and that they believed the killing was a case of mistaken identity.Mr Dill’s murder, at the time the 28th in seven years, sparked fresh calls for a crackdown on gun violence.• Anyone who can assist with the enquiry should contact Mr Smith at 717-0864, Detective Constable Llewellyn Edwards at 717-0992 or the police contact centre on 211. The public can also call the anonymous and confidential Crime Stoppers hotline on 800-8477