The feds are coming for the Kardashians... At least according to Kim Kardashian's ex. Ray J is going viral after footage surfaced of him claiming he's working with authorities to build a RICO case against his one-time sex tape co-star! And not just the SKIMS founder either, her momager Kris Jenner, too! RICO - as in racketeering?!? Whoa... Related: Kim Kardashian Faces 'Biggest Nightmare' Amid Kanye West Doc The moment comes from a recent stream of rapper Chrisean Rock's, where the 44-year-old was heard off camera gloating about a legal storm brewing.