Carey-Ann Petit

, along with Tameka Santiago, was one of the two unsubs in episode 2x07, "Smoke & Mirrors". 

Timeline: October 2007 - February 2009

Location: Miami, Florida

Age: 20

Status: Gamma

Gammanalysis
Crack: Unknown, but possibly due to abusive foster parenting

Manifestation: Convincing others that they are in the middle of a raging fire

Victims: Families either pregnant with or having recently given birth to twin daughters, including:
 * Alicia Post, her husband and their twin infant daughters
 * James and Susan Calvin
 * Mary, Emily and Celia Wurstoff

Current status: Dead; jumped through the window of the high-rise apartment of Ingrid Fromberg and Peter Hsiung