[ConcernedCitizen]

Sounds like you don't need a forum, you need the police. Your property can't be messed with like that, even if you're not on the lease. The law clearly states that for homeowners and renters, you can't kick someone out for any reason without prior warning and you can't alter the state of their belongings without consent. You should call the police and file a report and hit your landlord with charges. I assume you were not on the lease. If you were, then you have even more of the law in your favor, especially if you mention the threat of violence.