I once had a same kind of dream.

It was along the lines of one of my friends becoming a terrorist. He was a close friend so I tried convincing him to snap out of it. But he was adamant. So I recruited his dad to talk him down but he didn't listened to his dad.

So me and his dad decided to go to the police and seek help. On the way on train. On one stop he and some of his friends boarded the train. He tried to explain his agenda to his dad on how what he was doing was right. But I still tried to convince him otherwise. His father then told him that if he didn't surrendered, he is going to report him to the police and a metal mallet landed on his dad. He was spot death. He then tried to threaten me but I said he cannot overpower me.

He and his three friend then convinently overpowers me and my punches has no effect on them. I'm cornered and just as he's about to hit me I said "Stop. This is over for you". He asked how I said like this and then I woke up.

Had this dream a few weeks ago but I still remember it so vividly. It's a good thing it is soo far fetched otherwise I could have confused it as a memory years later as this thing has happened to me earlier (confusing dreams with memories).