King Combs' father Diddy is in big trouble.

The feds are investigating him for sex trafficking, and if he ends up going down on those charges, there is a good chance he will die in prison.

Puff hasn't been charged yet.  However, federal agents did raid his homes in Miami and LA.

King was in Los Angeles during the raid, and the 25-year-old was handcuffed as the agents searched for hard drives and other evidence.

He expressed his feelings on the situation with an emoji.

"Stop with the [cap]," he typed on social.

It's not of the question that the Feds will charge King in an attempt to get him to flip on his dad.

So he better hope it's cap.