I saw a dead guy

Last year I saw a guy in my dream in which I was explaining myself to him and throughout the dream, he was just kind of hanging out in the background, not really taking part in whatever was happening in the dream. When I woke up I thought this was strange as I wasn't really friends with this guy and he was just someone I knew. The next day after I had this dream, I saw from a mutual friend's post that he had passed away in a car accident. Last night, I saw him again in my dream. I was in a room with someone and this guy appeared at the door. I screamed to the person with my in the room not to let him in as he was dead. I told the person beside me, "Do not let him in. This person is already dead. That's a dead person. Idk why he's coming here". But then the guy at the door said, "no I'm not dead. Last year I made an ill prank on my friends that I had died and it spread more than I wanted that I was dead. But here I am in the flesh very much alive". I think this is all that I saw of him and my dream continued without him.