Mohave County Sheriff’s deputies arrested James Allen Grenke, 52, of Fort Mohave, late Sunday evening (12/31), for Felony Aggravated Assault by Domestic Violence. On Sunday evening, just before midnight, deputies responded to a residence in the 4500 block of Calle Valle Vista. It was reported that Grenke had pointed a shotgun at his girlfriend. Grenke admitted he was holding the shotgun when his girlfriend attempted to enter their residence, but never admitted to pointing it at her. He was booked into the Mohave County jail.