The 33-year-old man shot dead in Co Kildare early yesterday was a suspect in a double gangland murder earlier this year but his killing may have been the result of an accident.
However, gardai last night did confirm that a second man is in hospital in Naas following yesterday's shooting in Kilmeague, Co Kildare. His injuries are not said to be life-threatening.
Edward 'Ned' Hamilton died from a shotgun wound at around 6am yesterday at his home just 12 hours after the shooting of Christopher 'Christy' Warren, 35, in central Dublin. Warren, a drug-addicted burglar, was shot while sitting in a car at Constitution Hill in Dublin with a friend.
Gardai last night sealed off an area near the Broadstone Bus Station in connection with their investigation.
It is suspected Warren was lured to a meeting and shot dead as he sat in the car. A number of shell cases were recovered where the car was parked. He was then driven to St James's Hospital.
The car was abandoned in Cork Street and gardai were questioning Warren's friend. The man being questioned is not suspected of the killing. However another man in his 20s has been arrested in connection with the death.
Edward Hamilton, who is believed to have died as a result of a shot from a legally held shotgun at his home in Kilmeague, Co Kildare, was described by sources yesterday as a career criminal. He was an early suspect in the murders of Andy Barry, 31, and Lithuanian national Zilvanas Varnauskas, 31, in Kilcock, Co Kildare, last March.
Their murders are believed to have resulted from a dispute over drugs money. Barry had connections with a drugs gang originally based in the Tallaght area, but whose main members have moved out into new housing developments in Kildare in recent years.
Barry was also involved in dealing in stolen cars with Varnauskas, who was part of an Eastern European gang specialising in car theft and who happened to be visiting Barry at the time. He was shot as he tried to run out the back door of the house.
Hamilton had been an associate of Barry's but the two had apparently fallen out and Hamilton was investigated over the death.
However, Barry was an extremely violent criminal with many enemies.
Warren came from the St Theresa's Gardens corporation flats complex, which is a centre for heroin dealing, and had been an addict since his teens. His 24-year-old brother Paul, who was shot dead in February 2004, was centrally involved in the "Crumlin-Drimnagh" feud and was an associate of gang leader Freddie Thompson.
Christy Warren was a prolific thief, described by a source as a "one-man crime wave". He was due to return to Mountjoy Prison this week.
Alongside the two gunshot deaths, gardai received a report about another apparent murder in Rueben Street, near where the car from the Warren killing was found.
However, it emerged that the man, a Polish national, fell from the window of his apartment and suffered head injuries. This death is not being treated as suspicious.
Garda Press Office Superintendent David Taylor yesterday appealed for public assistance in relation to the killing of Christy Warren asking, in particular, if anyone saw a blue Mercedes 180 at St James's A&E at 6.57pm on Friday; or the same car or any suspicious activity in the area of Constitution Hill, Great Western Way and Auburn Terrace between 6pm and 7pm; and at Cork Street, where the car was abandoned shortly after 7pm.