Niko can find Derrick in the same park he found him for the mission Smackdown. He will tell Niko that Aiden O'Malley, an old friend of his, has been collaborating with the LCPD, giving them information about his former criminal associates. Aiden believes Derrick snitched on him, and so Derrick is afraid that Aiden will snitch on him now. He asks Niko to kill Aiden when he is being taken back to the Alderney State Correctional Facility.