Tenant threatened neighbor with a weapon, now what?

[Patrick Lindsey]

I received a call a couple of days ago from a neighbor next to my single family unit. The neighbor explained that he has been having issues with the tenant parking in front of his mail box and preventing the mail from being delivered. He's talked to the tenant about the issue to no avail. Recently the neighbor was trying move a vehicle off of his property but the tenant had a vehicle blocking path. The neighbor asked the tenant to move it and the tenant threatened the man with a firearm telling him to get off his property. The neighbor called the police and then contacted me (as I had previously given him my card).

I thanked him for calling me and apologized for the tenant's behavior (the neighbor actually asked me at the end of the conversation if I did property management professionally as he and his wife will be moving in the next year). The tenant has only been in the property since February on a year lease and pays rent on time however he is in the process of getting chaptered out of the military and has discussed possibly moving out. I would prefer him to move out as he will most likely not be able to pay rent once he is seprated from the military and due to this behavior. What should I do?