Murphy, 69, was walking with friend and fellow Dolphin official Mick O’Riordan on Sherbrooke Street in the Canadian city when the accident happened.
Witnesses said the accident was a “violent impact.”
Murphy, a Cork native, died later in hospital. His family was able to travel from Ireland to be at his bedside.
Police later arrested a man after finding the vehicle covered with a blanket in a nearby parking garage in the basement of a high-rise apartment building.
The driver, foreign student Mohamed Karim Tagemouati, was charged with hit-and-run causing injury, fleeing the scene of an accident, and vehicular homicide, among other charges.
A family spokesperson said: “Montrealers have done their share. They have come out in great numbers to show their support. We’re talking about monetary support, we’re talking about meal tickets at various restaurants, we’re talking at people picking up the tabs at various hotels. They’ve been extremely, extremely generous.”
“It’s been a very difficult eight days for the wife, two sons, daughter, and other members of the family that have been here. He was unplugged [from a life-support system] at 6 p.m., and he died about a half an hour later,” the spokesperson said.
O’Riordan, 52, was also injured in the incident but was released from hospital and has returned to Ireland.
The men were in town with an Irish rugby team for a tournament. They were heading back to their hotel from a pub when they were hit by a gray BMW traveling west on de Maisonneuve Boulevard about 3:45 a.m.