Serial killer (Edmund Lowry) - RDR2 Easter eggs and secrets

Edmund Lowry Jr. is a serial killer who strings up the desecrated and mutilated corpses of his victims throughout New Hanover, Big Valley and Lemoyne, leaving clues that can be pieced together into a map to his hideout, a cabin southwest of Valentine. After finding all three clues from the crime scenes, the player can go to Edmund's basement, which is filled to the brim with murder weapons and the remains of various victims, some nothing but polished skulls while other fresh and stretched open carcasses. Also proudly strung up on the walls are newspaper clippings describing the many disappearances and serial murders he had commited. Edmund is a very sick and twisted individual, stringing up the mutilated bodies of those he killed up for any passerby to see. Edmund seems to want recognition as a serial killer, wanting everyone to remember his name and even planting maps to his location at the locations of the mutilated bodies as some sort of jigsaw puzzle and going so far as to propose to a newspaper