Luke Eriksen

was the unsub in episode 4x01 "Bulletproof".

Timeline: August 2011

Location: St. Louis, MO

Age: 20

Classification: gamma

Gammanalysis
Crack: Unknown, presumably abuse by his father

Manifestation: force field

Victims: none directly. One bystander at a bank robbery died when a shot fired at Eriksen was deflected by his force field.

Current status: dead. He threw himself off the top of a ten-story building; while his manifestation enabled him to survive the landing, he died of starvation moments later.