Gerald 'Gerry' Dorgan, 75, had been in critical condition since Robert Dorgan (pictured) carried out the mass shooting at the Dennis M. Lynch arena in Pawtucket last week.
Robert Dorgan, who also went by 'Roberta Esposito', opened fire at an ice hockey game, killing his son Aidan Dorgan, 23, and his ex-wife Rhonda, 52, before turning the gun on himself.
Robert Dorgan, 56, opened fire inside the Lynch Arena in Pawtucket, Rhode Island, on Monday afternoon, killing his ex-wife and their son before turning the gun on himself.
Rhonda Dorgan, 52, was shot dead by her ex-husband Robert Dorgan - who also went by the name Roberta Esposito - at their son's hockey game at the Lynch Arena in Pawtucket on Monday.
Robert Dorgan, 56, who killed two people at a youth hockey game in Rhode Island on Monday, appeared to post an ominous warning just days before the shooting.