The man who fatally shot his girlfriend and her father on New Year's Eve in Halifax before killing himself was wanted by ...

Ontario court documents from a sentencing a decade ago detail Matthew Costain's criminal record that began at the age of 14, including several arrests involving illegal guns.

The man suspected of killing his girlfriend and her father on New Year's Eve in Halifax was wanted in Toronto for a 2019 nightclub shooting.

HALIFAX — Halifax police say the 39-year-old man who allegedly killed a woman and her father on New Year's Eve was a fugitive wanted in a 2019 Toronto nightclub shooting.

Halifax Regional Police say a father and daughter were fatally shot on New Year's Eve hours before the woman's boyfriend took ...

The latest victim was 60-year-old woman, found near the body of her 75-year-old husband at their home in Mahone Bay ...

Matthew Costain is shown in a Toronto Police Service handout photo released in 2019. Halifax police say the man suspected of killing a woman and her father on New Year's Eve was a fugitive wanted ...

Halifax Regional Police (HRP) confirmed Friday that Matthew Costain, 39, was the same man identified by Toronto police as a suspect in the Aug. 5, 2019 shooting. Four people were injured in the ...

Halifax Regional Police confirmed Friday that Matthew Costain, 39, who is the sole suspect in the double homicide, is the same Matthew Costain with an outstanding arrest warrant in Ontario.

Matthew Costain is shown in a Toronto Police Service handout photo released in 2019. Halifax police say the man suspected of killing a woman and her father on New Year's Eve was a fugitive wanted in ...

Investigators say Matthew Costain died of a self-inflicted gunshot wound a few hours after he shot and killed 40-year-old Cora-Lee Smith and her 73-year-old father, Bradford Downey, in a car in ...