Who are the 4 killers on criminal minds intro

His low-impulse control meant that he could not stop killing until he was arrested.

Despite the murders being committed in secluded hiking trails, they were all unnecessarily violent, implicating the unsub lacked confidence and felt he would be unable to charm his victims. The unsub is a disheveled male aged in his twenties who would work a menial job and own an American-made truck that would be in a state of disrepair. The Footpath Killer is presumably incarcerated afterwards. When Gideon simply begins mocking him, the Footpath Killer grows increasingly frustrated and begins sputtering incoherently, keeping him occupied long enough for Gideon to disarm him, knock him out, and arrest him. Ignoring this, the Footpath Killer marches Gideon into a back room, where he shows him pictures of his victims, feeding off from the surprise Gideon expresses when he finds out that there are thirteen victims and not six before demanding him to grab a nearby camera (presumably to record Gideon's murder or even have him record something else). Gideon replies that he is an FBI agent and also claims (as a ruse) to know why he stutters. The Footpath Killer holding Gideon at gunpoint.ДЄfter forcing Gideon back inside, the Footpath Killer demands to know who he is. After several seconds of awkward silence, in which the Footpath Killer notices Gideon's gun, Gideon leaves, only to hear a shotgun being chambered. After the unsub is killed and his latest victim saved, Gideon returns to Virginia and unknowingly (and coincidentally) stops at the gas station the Footpath Killer works at, later immediately realizing the clerk possesses every characteristic his profile stated the unsub would have when he goes inside to pay for his gas. Unable to catch the Footpath Killer, the authorities asked Jason Gideon to profile him, which the agent did, later using his profile in a lecture he gave at Quantico in 2005, right before returning to work with the BAU to help them track down the Seattle Strangler. The Footpath Killer eventually murdered thirteen people, though only six bodies were found.

He began brutally murdering people on backwoods trails, beating them into submission before shooting them in the head with a 9mm. At an unspecified point in his life, he snapped for unspecified reason(s) (likely due to his low self-esteem from his stutter, should the profile about him be correct). What is known about him is that he worked at (and presumably owned) a secluded roadside gas station in Dumfries, Virginia. Nothing about the Footpath Killer's past is revealed, not even his real name.

Who are the 4 killers on criminal minds intro