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

The lone suspect in a Halifax double homicide was wanted by Toronto police. Matthew Costain, who police say died of a ...

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 man accused of killing his girlfriend and her father on New Year's Eve had been wanted since 2019 for a nightclub shooting ...

HALIFAX - Experts on domestic violence say a series of deaths in Nova Scotia over the past three months highlight the need to ...

Toronto police issued a warrant for the suspect’s arrest on Sept. 6, 2019, alleging he was involved in a nightclub shooting a ...

The New Year’s Eve killing of a 73-year-old father and his daughter, 40, are a case of “intimate partner violence,” according ...

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 ...