Aiden O'Malley was an associate of Derrick McReary. At some point prior to 2008, Aiden was arrested for a string of robberies. Aiden blamed Derrick for his conviction and his friend Bucky promised that he would take out McReary's family. Derrick takes Niko to break out Aiden and take him out in upper Alderney. When about to be killed, he will shout about how he doesn't want to die and that he thinks Derrick is a rat.
The ghost is believed to be located where he is knocked off the cliffs in upper Alderney. After several investigations, myth hunters have reported hearing strange noises but no sightings have been made. This myth is regarded as unlikely.