The horrifying story behind jUANTHEGARBAGEM4N

So, recently, me and my friend, veryoriginal64, were hunting for weird, strange, and scary ROBLOX games. We had joined a random game with a very strange title, yet it was normal. We were just playing and racing with the starter cars until a man named jUANTHEGARBAGEM4N joined.

He seemed normal, so we just rolled on with our day. We were racing around till one day, he said this:

I really did not know how to react, until he started blowing everything up. Later on, I asked him who he was and why he was doing this. He responded with "70u d1d 7h15" which obviously translates to "You did this."

I don't really know, but someone here sees him, then just tell me what he did and what hes doing.