Prior to being incarcerated at Mount Massive, Walker's career started off as a military policeman in the United States Army. A note reveals that before being admitted into Mount Massive Asylum, Walker was ex-military police, as well as having toured Afghanistan several times.
He is responsible for the deaths of various people inside the asylum, employees and patients alike, in an attempt to contain the Walrider, which Father Martin is trying to set loose upon the world. The removal of his nose and lips was a result of self-mutilation due to extreme anxiety. He claims the flesh ripped from his forehead allows for a truer vision, much like tuatara and their third eye. is a manic exaggeration of military security protocol'. A document states that Walker's 'predominant fixation.
