Yeah what he is doing is definitely illegal. I would contact the local law enforcement and explain the situation. There is NO law that states that other tenants would have to suffer because he is too afraid to talk to the one tenant he wants to leave and evict her himself!! You should NOT have to suffer because he is too childish!! If he evicts her and she doesn't leave, then he doesn't have to turn off heat or electricity, he CALLS THE COPS and THEY make her leave, or arrest her. Plain and simple.

If there are children or elderly in the building, not having heat can KILL them over a period of time!! You NEED to complain to someone NOW!