Facing a murder charge for his on-duty actions, Christopher Schurr testifies he feared for his life before shooting the motorist during a struggle.

There’s no question about how Patrick Lyoya, a 26-year-old Congolese immigrant, was killed. Lyoya was fatally shot in the back of the head while on the ground by a Michigan police officer, who was subsequently charged with second-degree murder.

A Michigan police officer who killed a man with a shot to the back of the head is testifying in his own defense at his second-degree murder trial