6. Lavar Johnson
Lavar Johnson was recently sentenced to 5 years in prison for a brutal assault on his then girlfriend. The charges included corporal injury on a spouse and assault by means likely to produce great bodily injury. Johnson is said to have punched, kicked and slammed the victim several times before attempting to leave the scene.
Johnson was 2-2 in the UFC, with wins over Pat Barry and Joey Beltran. He then went 1-3 in Bellator.