Police in Belfast were today trying to establish the movements of a man (21) over a 40 minute period after he vanished exactly a year ago.
Martin Kelly has not been seen since he left a bar in Belfast's docklands on New Year's Day 2006.
Despite public appeals, police enquires in Northern Ireland and beyond the UK, land and sea searches and the launch of a website highlighting his disappearance, he has not returned.
Police in Belfast today revisited the pub, Pat's Bar in Garmoyle Street, where he had been drinking with friends before his disappearance.
Detective Chief Inspector Jeff Smyth said they were particularly interested in the missing plumber and part-time barman's movements over a 40 minute period where he briefly left the public house and returned.
Mr Kelly had been working on New Year's Eve in the Priory Inn in Holywood in Co Down. Afterwards he had gone to two house parties to welcome in the New Year. He and his friends went to Pat's Bar on the afternoon of New Year's Day to watch a football match, but he remained behind when his friends left and talked to other customers.
After leaving the bar for 40 minutes, he returned and left shortly after 7.10pm. He is described as six foot one inch tall, of slim build, with short dark hair and green eyes, and was wearing a black Guinness T-shirt and blue jeans.
The website calling for information about his whereabouts was set up last February. His family has also leafleted people in Belfast city centre and the Odyssey Arena in an attempt to secure information that could help police trace him.