Sons of Anarchy Star Found Dead At Bizarre Murder Scene

Lewis -- the "Sons of Anarchy" actor suspected of murdering his landlady Wednesday before falling off a roof to his death -- was convicted of several violent crimes in 2012.

According to official records, Lewis committed felony assault with a deadly weapon on January 3rd. The records don't specify the details of the crime, but they do show he was subsequently ordered to complete a rehab program for "treatment of mental health and/or drugs and alcohol."

The records also indicate Lewis was arrested on February 10th. Law enforcement sources tell us, he sucker-punched a man on his way out of a yogurt shop for no apparent reason.

Eight days afterwards, on February 18th, Lewis was arrested again for burglary. According to law enforcement sources, he had tried to break into a woman's house through a window, claiming he was looking for a friend ... but when the woman called cops, he took off.

Lewis was convicted of felony assault following his January arrest, and sentenced to a year in county jail. Lewis was also convicted of battery and burglary following his February arrests, and sentenced to 303 days in jail for those two crimes.