
A Chicago police sergeant said he's never heard of anyone being stabbed to death with a house key.
But police suspect that's how a 24-year-old man died after a domestic disturbance early Sunday.
Police said Coty Jackson was stabbed in the back of the neck. They're awaiting autopsy results to determine whether the weapon was a key.
Police said Jackson was arguing with his father's girlfriend when the stabbing occurred.
A woman is in police custody but charges have not been filed yet.

DAMN!!!