Fourth person arrested in connection with Christmas Eve shooting

Gardaí at the scene of the shooting at Browne's Steakhouse in Blanchardstown. Picture: Stephen Collins/Collins
A fourth man has been arrested in connection with a shooting in Dublin on Christmas Eve.
Tristan Sherry died after being assaulted during an incident at Browne's Steakhouse on Main Street in Blanchardstown at about 8pm on December 24.
Jason Hennessy Snr, who was in his late 40s, sustained multiple gunshot wounds in the shooting.
Mr Hennessy was initially treated in Dublin’s Connolly Hospital but had been transferred to the city’s Mater Hospital, where he died last week.
The man was arrested on Wednesday under section 30 Offences Against the State Act, 1939, as amended.
He is being questioned at a Garda station in West Dublin.
"Investigations are ongoing," a Garda spokesperson said.
Three men have been charged in relation to the attack on Mr Sherry.
Last week, David Amah, 18, with an address in Hazel Grove, Portrane Road, Donabate, was charged with the murder of Mr Sherry.
Wayne Deegan, 25, with an address in Linnetsfield Avenue, Phibblestown, was charged with assault causing harm to Mr Sherry, producing a knife in a way likely to intimidate or injure, and committing violent disorder.
At the end of December, Michael Andrecut, 22, of Sheephill Avenue, Corduff, appeared at a special sitting of the Criminal Courts of Justice in Dublin charged with Mr Sherry’s murder.