Blackfriars Massacre
1978 CE.
Shown on the map at 42.353°, -71.058°.
The 1978 Blackfriars Massacre, also known as the Blackfriars murders, is an unsolved Irish mob and/or Italian-American Mafia massacre that occurred on 18 June 1978, at Blackfriars bar in Downtown Boston, Massachusetts. Five people were killed, including former Channel 7 investigative news anchorman, Jack Kelly, allegedly over a robbery gone wrong.
Text from the Wikipedia article Blackfriars Massacre, licensed CC BY-SA 4.0.