Malicious Expanding Foam twice backs up sewer thousands in damages

[Steve P.]

I am the owner landlord of a duplex in which my tenant (he doesn't know I found his malice) took a can of expanding foam insulation with a long tiny tube and squirted it into the trap below the laundry room floor drain. Then he filled the room with water causing two replacements of the rec room carpet and pad and thousands in water restoration twice in a space of two weeks.

Has anybody else run up against a tenant that has been malicious, especially in this specific manner and what was the resolution?