[s1e2] Compulsion [Trusted × 2026]

The second episode of Criminal Minds , titled "," originally aired on September 28, 2005. It takes the team to a college campus in Tempe, Arizona, to track down a serial arsonist who has escalated to murder. The Case: Arson on Campus

The BAU is called in after a series of fires at a local university result in the death of a student named Matthew. Initial evidence is scarce because fire often destroys physical clues, forcing the team to rely heavily on psychological profiling to find the "unsub" (unknown subject). [S1E2] Compulsion

: The team initially struggles to determine if the victim was targeted or simply in the wrong place. They eventually realize they aren't dealing with a typical "serial arsonist"—who usually finds pleasure in watching things burn—but rather a serial killer who uses fire as a weapon. The second episode of Criminal Minds , titled

"Compulsion" also deals with the psychological aftermath of the pilot episode for : Initial evidence is scarce because fire often destroys

: The breakthrough comes when Dr. Spencer Reid identifies a ritualistic behavior. He recalls a science lab assistant, Clara Hayes , who displayed obsessive-compulsive traits, specifically counting in threes.