Murdered in my dream?

I had a very surreal dream last night.. its been playing on my mind today.
It began in a town, a town ive never been to before, i knew it was very dangerous but i was curious, i decided to go explore.
Before walking deep into the estates i knew it was trouble, i turned around and went the opposite way.

Next thing I know im at a location (I believe i was in a store/shop i can't recall exactly where i was, but i KNEW i had been here before, not in real life but in a dream). Everyone was very aggresive towards eachother, i knew something terrible was about to happen. I tried to leave the store as quickly as possible heading for the exit, as i approached it everyone around me started fighting, people were being stabbed etc and police were fighting the hooligans.
I managed to get out of the store, directly outside was a strange set of stairs, i KNEW this set of stairs let to the train which took me home.

Everything was scary and frantic, i had to hurry up to get there safely. I could hear my train coming, i started to panic. In real life you have to buy a ticket to board a train but in my dream a man/woman (cant recall) was selling tickets. I went over and bought a ticket. I was in such a hurry i ran off without my ticket, i was called back so i ran back and retrieved my ticket.

I ran up the dark stairs and found myself on the tube, my train went right past. I was too late. I stood there patiently unsure what to do, i was afraid for my life i mean people were fucking beating eachother up left right and centre, i knew i was in great trouble. Their accents were also british but northern unlike mine, i knew i was far from home.

A man commented on my t shirt which i believe was a football team, i do not watch football but i was wearing a shirt of a team i supported as a kid, i havent supported this team or watched football in years. At first the man seemed to be very friendly, i took this as suprise, suppose you could say i sort of trusted him, we were joking about. Before i knew it he started tickling me and i started laughing im extremely ticklish, this is very bizarre, why would a grown man be tickling another grown man? it was only a joke sort of way though.. whole thing was very confusing.

Before i know it my train was coming towards us i could hear it in the distance, He then started tickling me again but suddenly grabbed me, i tried to pull him off but he threw me onto the train tracks, all his friends were laughing ecstatic-ly, along with everyone else at the train station.
I looked up in shock and saw the train coming at me really quickly, i tried to run to the otherside but i felt as if i was running in slow motion, as if i had no chance of escaping, the train crushed me.

As soon as the train hit me i woke up. I went to the toilet got a drink of water and got back into bed. the whole thing was very strange and i struggled to sleep for the rest of the night, i didnt want to revisit this horrific violent town.

What i want to know is how comes ive come back to this place again? i dont know how long ago i dreamed of this place but it felt very very real and i knew from the start i was in trouble i just couldnt escape. Why was i killed by a stranger? if anyone has any sort of similar experience please share because it has completely fucked my mind, from start to finish i have no answers.

EDIT: apologise for my swearing in case it offends anyone, im just trying to emphasise just how much this has boggled my mind lol