A fresh appeal for information has been launched by police following the mounting of a murder investigation into the death of Gerald Corrigan.

Mr Corrigan, aged 74, was shot with a crossbow bolt outside his home in South Stack Road, Holyhead more than three weeks ago. He was taken to hospital in Stoke on Trent. with head injuries.

He worked as a lecturer in photography and video in Lancashire prior to retiring to Anglesey more than 20 years ago, and had a keen interest in nature.

Detective Chief Inspector Brian Kearney said: “On Saturday May 11 Gerald Corrigan tragically died at the Royal Stoke Hospital despite the best efforts of the brilliant medical team there. As such a murder investigation has been launched. This is now the largest murder investigation on Anglesey since 2001.

“We continue to keep an open mind regarding the sequence of events leading to this attack on Gerald , and we continuing to keep an open mind as to whether this was a deliberate attack or otherwise. Gerald suffered horrendous injuries, his family are truly devastated and have been by his side over the past three weeks. They continue to be supported by specially trained family liaison officers.

“We are continuing to appeal to anyone with any information whatsoever to come forward. If you know anything about Gerald Corrigan and his lifestyle please come forward. If you have any information whatsoever that can assist us in this investigation please come forward and tell our investigation team in total confidence.”

Anyone with any information should contact officers at Llangefni CID on 101 or via the live webchat via north-wales.police.uk/contact/live-chat-support quoting reference number X052857, or contact Crimestoppers anonymously on 0800 555 111.