EMT's frantically tried to revive Coolio after his body was found in a downtown LA. home, but after 45 minutes of CPR he was pronounced dead.
TMZ broke the story ... Coolio was at a friend's home late Wednesday afternoon when he went to the bathroom. We're told he was in there for quite a while, and the friend became concerned and began calling for him. When Coolio didn't respond, the friend went inside the bathroom and found the rapper laying on the floor.