Is it normal i had a dream i killed someone in a fight

it started with me and a friend in a local shopping centre down the street from where I live. we were both drunk and we were going to buy alcohol but we were wrongly accused of shoplifting and we left.

as we were exiting the shopping centre, 3 groups of tourists entered. there were about twenty people in each group and each group was wearing matching coats. there was a group in green coats, a group in red coats and a group in yellow.

I was laughing at them and light heartedly making fun of them saying stuff like "go green team" in an American accent.

one of the green team wanted to fight me so I agreed. I wasn't angry or anything but I just agreed to fight. I didn't intend to hurt him but we started grappling and we were pretty evenly matched.

eventually, I had my arms around his waist and I got down low and lifted him from his knees and slammed him into the ground, smashing his head off the pavement. there was a puddle of blood around his head and I knew instantly that he was dead.

I ran away through the alleyways and kept running for what seemed to be hours and eventually I was running through the countryside and I was really high up in the air or really tall like I was about a mile off the ground and o was looking down at towns and villages like it was on Google maps.

I don't remember anything after that.

it may be something to do with something that happened in real life when a homosexual tried to approach me and I grabbed him by the throat and pushed him and he fell on the road and a car had to stop suddenly and the front wheel stopped about 6 inches away from his head. this happened on the same street about 20 metres away from where the dream fight took place.