Is It Just me, Or Is Everyones Life Chaotic?

Sammy came complete with violent history, and I in no way excuse Sammy for what he did.Patrick was not at fault for what happened and the burden lies only on Sammy for his behavior.
Sammy provoked Patrick into a fight. Patrick did not respond physically or verbally. According to Patrick, Sammy punched Patrick in the arm and slammed him against the open refrigerator door. Sammy's reasoning was that he was trying to protect me from Patrick's intense verbal abuse. I did not witness the event. I was in the other room and heard Sammy verbally provoking Patrick.
Before the incident,when i saw that Sammy was starting to verbally turn on Patrick which he had not done up to this point , I warned Sammy to leave Patrick alone.
I gave a pep talk to the two men complete with attempted group hug, that we should all live in peace.I did not believe Sammy capable of hitting a stroke patient.He did.
Patrick was not inclined to call the police, but instead offered Sammy the opportunity to back off with a promise to stop drinking.Sammy continued to verbally provoke Patrick until Patrick got on the phone and placed the 911 call. The Sheriff showed up within a few minutes and took Patrick's report. The Sheriff said, "this is a he said she said situation," and since there were no witnesses, nothing could be done. Patrick had to came forward to insist the arrest be made(I think this is called a citizen's arrest.)Patrick said he would do anything it took. The police officer ran Sammy's ID and apparently found out that he had five warrants...or was it six? Exit citizen's arrest, enter arrest of wanted criminal.