CANADA Canada - Thomas CAHILL, 44, Toronto, 4 December 1983

https://www.torontopolice.on.ca/homicide/case/45/1983
Homicide #45/1983

Victim:

Thomas
CAHILL

Age: 44

Gender: Male
Murdered on: December 4, 1983
Location: 51 Division
Details of Investigation:

On Sunday, December 4, 1983, at about 4:44 a.m., police responded to an emergency call on Berkeley Street near Shuter Street.

The victim was discovered inside a residence, suffering from stab wounds. The victim was transported to hospital, where he died shortly after arrival.

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https://nicollinvestigations.wordpress.com/tag/gay/

Police are asking for help in locating the murderer of Thomas Cahill, 44, a high school art teacher found stabbed at his Berkeley Street home early Sunday morning, December 4.

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Sgt Herman Lowe of the homicide squad said police have been questioning people, including hustlers in the downtown area, who may have seen Cahill in the hours before his death. Individuals have been “most cooperative,” Lowe said.

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Cahill was last seen at the St Charles Tavern early that Saturday evening.

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On Sunday, December 4th, 1983, art teacher Thomas Cahill was stabbed to death in his home on Berkeley St. Charles Furlong, a tenant in Cahill’s house, had heard Cahill talking to someone downstairs, and then, at 4:45 a.m., he heard Cahill call his name. When Furlong came downstairs, he found the front door open and Cahill lying in a pool of his own blood. Police believed Cahill was stabbed by a departing visitor. He had spent Saturday night at the Parkside Tavern on Yonge St.

https://nicollinvestigations.wordpress.com/2016/10/14/thomas-cahill/

Note: Some reports have him last seen at the St. Charles Tavern (Body Politic - January/February 1984) while the Toronto Star the day after the murder has him last seen at the Parkside Tavern.

Thomas CAHILL​

Age: 44
Gender: M
Murdered on: Dec. 4, 1983
Location: 51 Division

Details of Investigation​

On Sunday, December 4, 1983, at about 4:44 a.m., police responded to an emergency call on Berkeley Street near Shuter Street. The victim was discovered inside a residence, suffering from stab wounds. The victim was transported to hospital, where he died shortly after arrival.''

Mr Cahill was an art teacher, as was Mr Buller, although the murders are roughly 20 years apart, any chance there is a connection involving art between them?
complete speculation. imo.