Not much is known about Gerald apart from the fact that he was aged 37 at the time of his death at the hands of the notorious secret society known as the Crimson Order.
Events of Criminal Case
At the natural harbor, Cathy King—who was digging about her recently-deceased grandfather's life—was holding an article about one of Chief King's investigations from the past, but the wind flew it away from her grip, so she went to the police station to ask for the player and Jones' help. The team headed to the natural harbor at her request, and found the article. Titled "Red Caped Killer Escapes", it read that a man by the name of Gerald Walker was killed by a "red caped killer". It also mentioned that Chief King was the detective in charge of investigating the murder, but was unsuccessful in catching the killer.
Per Alex, Gerald's murder investigation was gone from the Grimsborough PD files, and the only person who could delete it was Chief King himself. Jones refused to believe Chief King would help the Crimson Order, so he and the player decided to go talk to Jason Palms about the matter.
Jason said that it was the Crimson Order's doing of deleting the murder investigation from the police files, and that Chief King was a member of the secret society because all his investigations on the Crimson Order were silent.