See here for the mission of the same name in GTA Chinatown Wars.
"I know a real important man in town. A soft-touch with, shall we say, exotic tastes and the money to indulge them. He's involved in a legal matter and the prosecution has some rather embarassing photos of him at a 'morgue party'...or something."
Ray informs Claude about knowing a rich man in the city, namely Donald Love, and somebody has pictures of him at a "morgue party", eating corpses. Ray orders Claude to get the evidence and torch the car that the pictures are in.
Claude gets in a vehicle and drives to the evidence which is in a bulletproof, fireproof and explosion proof Bobcat, which is driving around Staunton Island. He then rams the Bobcat from behind and collects six images. Claude then destroys the car he used for collecting the evidence.
In order to complete the mission the player must:
Ram the evidence vehicle and obtain the six images