I made a dream that deeply shocked me

Hello,
Yesterday night I dreamt I was in a city. I’m trying to have lucid dreams so I train my dream recall. There was a huge mall inside a tiny toilets house. I recall precisely some buildings, the surroundings, the plaza aroundof the mall and some stuff.
Then today for my work I had an important document and to remember it I write down the file number when I came back homes. I had no pen and paper immediately available so I thought i would google the file number.

The file number matched a postal code of a city and I thought I would go satellite view. And here came the shocker.
It wasn’t exactly the city of my dream but some unmistakable match happened. The setting was extremely similar. The shops and a bridge were extremely similar. The tiny toilet I saw in my dream was there, 100% identical. Of course there is no supermarket inside the toilet but there is a mall nearby. I googled the mall name and the google photos of the mall inside were incredibly similar. Architecture was identical but Colors were different.

Last thing, the night even before I dreamt of a serial killer who was called « vampire » and was a cannibal and kept trophies of his victims in his apartment. Some other weird details too. A serial killer matching that description was in that city.

I have never been to that city, it’s almost at the opposite end of the world.

How is that possible?

I don’t believe in paranormal but I’m puzzled by this dream. That dream is so strange it’s making me question my belief....

Can anyone relate ? Can anyone explain ?