Johnny Jimenez

"Pawn Stars" regular Johnny Jimenez Jr. is facing serious legal problems after being charged with domestic violence for allegedly yanking his girlfriend to the ground. According to law enforcement, cops were called to a Vegas restaurant last month for an assault call. They say when they arrived,…

The Las Vegas toy expert often featured on "Pawn Stars" has been named in a police report -- by a woman who claims Johnny Jimenez choked her and held a knife against her throat ... and she tells us, he also threatened to kill her. Law enforcement sources tell TMZ ... Las Vegas Metro PD received a…