I'm scared to go to work (psycho coworker) *2nd Update
So I sent my boss a message. He came over. Took the guy in a conference room and I heard the guy banging on the table and shouting. So I left the building, it was at the end of the day anyway.
Both Myself and the woman were mortified. I have to work closely with this guy and I'm scared to now. I'm not sure what's going to happen. I don't even want to see him.
ETA: Just talked to my boss. He was replying to a message I sent him saying I was very uncomfortable going in to work and wasn't sure I wanted to hold our 10am meeting with the team. I didn't sleep well at all. He thinks it was a temper tantrum and that the guy offered to apologize. He still wants me to hold our 10am meeting. He said we'll talk more when I get in and asked me if I wanted to talk before the meeting. I said yes, if what he has to say is supposed to make feel better. I don't know that I even feel ready to talk to the guy to allow him to apologize. :/
Update 2: After talking to my boss I got the impression The guy gave some good argument for his behavior based on the reaction from my boss. He said he wanted to resolve this between the team. I said I expected disciplinary action. He said maybe we could talk together about the issues, the three of us. After talking to the witness, my boss' reaction was different. He said he understands better now and is leaning toward disciplinary action. Was I supposed to be more dramatic with my explanation of what happened? Actually my boss didn't ask me more about what happened. :/
Anyway, I still don't have an apology. I'm going to recommend disciplinary action.