James Vlasak

was the unsub of episode 4x00 "Walking Back to Houston."

Timeline: December 2002 - March 2009

Location: multiple

Age: unknown

Classification: gamma

Gammanalysis
Crack: unknown; possibly being abandoned by his mother following his parents' divorce

Manifestation: Profiling potential victims over the Internet, presumably similar to Hafidha Gates' manifestation

Victims: Belinda Green, Jacqueline Kincaid, Theresa Lee Strong, Christina Nemechek

Current status: dead; committed "suicide by cop" when Minneapolis Field Office FBI agents tried to arrest him