More grueling details are coming out in the apparent murder-suicide involving 'Sons of Anarchy' actor Johnny Lewis.

The actor allegedly murdered his 81-year-old landlady, beat her cat to death and dismembered it before climbing onto the roof and falling to his death.  It's believed Johnny was on PCP or meth.

According to TMZ, he was arrested for several violent crimes earlier this year -- felony assault with a deadly weapon, battery, assault and burglary. He was sentenced to 303 days in jail for two of those crimes.

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