First of all, sorry about your troubles. First of all get a lawyer and find out the laws of your state before locking him out of the house and throwing out his belongings. For example in N.C., you cannot deny access to the home or remove property of the leaving spouse until they have abandoned the home for 4 full days. A friend of mine just left his wife of 16yrs due to her drinking and partying all the time. When the case went to court, she got burned for locking him out of the house and removing his property.
I realize emotions are running high right now, but just remain calm and if there is any mischievousness going on, he will hang himself without any help from you. Have you thought about getting a PI to watch him?
Marty