I found my script, which I wrote about two months ago and decided to share it with you. The idea itself came from GTA V.
About the script: at 23:00, a ghost will appear on Mount Chilliad. (At the same time, a notification will appear in the upper left corner of the screen) If you get close to the ghost, he will start killing GG. Trying to kill him is useless, because it's a ghost! You just have to run away!