Can I kick my room mate out because of this?

So the past few months me and the other room mates have been wanting to kick out are other room mate but the kicker was that he was once of the lease holder (the other one being my brother who also wants him out) we have no other reason other then the fact then that he's just a horrible room mate.

But today he finally crossed the line he threw out me and my brothers giant E (the letter E its like 10 ft tall a old friend got it from a store he use to work at that closed down) he didn't give us a reason didn't tell us he didn't like the E he didn't even ask if we could put it in one of are rooms he just threw it out. I'm asking did he break any possible rules or laws that may help us get him removed from the lease or for us to kick him out? I was thinking theft or destruction of private property cause it was mine and my brothers E and he took it with out asking.

Any help guys?