Six police officers have been killed in Canada since September.
Here’s a look at their cases and who they were:
Const. Grzegorz Pierzchala, 28
The Ontario Provincial Police has said Pierzchala was responding to a call for a vehicle in a ditch west of Hagersville, Ont., on Dec. 27 and was fatally shot in an ambush when he got there.
Pierzchala had been with force for just over a year and had been notified that he had passed his 10-month probation period hours before his death.
He was previously a special constable at Queen’s Park who, as a boy, dreamt of joining the police ranks….