Johnny Manziel's ex claims he threatened to kill her 02/05/2016 8:25 am PST Comments KIAH via Instagram via KIAH: DALLAS -- (KIAH) -- Has Johnny Manziel been a bad boy, lately? His ex-girlfriend is blowing the whistle on little Johnny saying he threatened to kill her. Police reports just released say Colleen Crowley claims Manziel told her "shut up or I'll kill us both." Talk about unsportsmanlike conduct. The alleged incident began during a physical altercation on January 30 in Dallas. FULL STORY: Johnny Manziel's ex claims he threatened to kill her - KIAH Waiting for your permission to load facebook comments.