why was screech in jail

Dustin Diamond, best known for playing Screech on "Saved by the Bell," was in jail because he was convicted of carrying a concealed weapon and disorderly conduct after a bar fight in Port Washington, Wisconsin, on Christmas Day 2014. During the altercation, he stabbed a man with a pocket knife, though the injury was not serious. He was sentenced to four months in jail and served about three months before being released early for good behavior. Later, he was also arrested on a probation hold due to a positive drug test for oxycodone, which violated his probation terms.