He had been walking home around 4 a.m. from his work Christmas party, having stopped at his office on the way to retrieve an umbrella and arrange certain things for his shift the next day.
Deely was later seen on another security camera in front of a bank he passed on Haddington Road as he headed home on foot, which is the last image that exists of him.
[2] After finishing school, Deely studied business at the Waterford Institute of Technology but dropped out in his second year.
[2] In late November 2000, just weeks before his disappearance, Deely flew to Alaska in the United States.
After drinks in Copper Face Jacks and the Hilton Hotel, the party moved to Buck Whaley's nightclub on Lower Leeson Street.
[4] While in his office Deely made a cup of tea and spoke to a colleague, Karl Pender, who was working the night shift.
[2] CCTV footage shows that a man dressed in black was waiting outside the gates of the bank for approximately half an hour before Deely arrived.
While the other two men have since been cleared as colleagues of Deely, the man in black remains a person of interest.
[6] At 4:14 am CCTV footage shows Deely walking past what was then the AIB bank on the corner of Baggot Street Bridge and Haddington Road in the direction of his flat.
[4] The Garda sub-aqua team searched the river Dodder and the Grand Canal but did not find anything.
[4] They were unable to drain the Grand Canal Basin as it would affect the structural integrity of the surrounding buildings.
[3] According to Dr. Philip Perry, a senior research fellow in the radio and optical communications laboratory at Dublin City University, a phone in 2000 would have gone dead within seconds of falling into the water.
[9] In August 2017, Gardaí began a search of a three-acre secluded area in the Dublin suburb of Chapelizod, about 8 kilometres from where Deely was last seen.
[9] An informant alleged that Deely was murdered on the night of his disappearance by a Crumlin-based criminal known to Gardaí.
[11] Although a gun and drugs were found during the search, investigators concluded that they were not related to the case, calling the site a 'stash area' for criminals.