Canada's premiers have sent a letter to the prime minister demanding a thorough review of the bail system after the homicide of a Surrey, B.C., woman.

Tori Dunn, 30, was killed in her home on June 16. Her death prompted an outpouring of grief in the Metro Vancouver suburb.

The man who has been arrested in the killing, Adam Troy Mann, was released from jail just days before the fatal assault despite a lengthy criminal history and current criminal charges for an unrelated robbery.

Dunn's killing, al…