A man's on-again-off-again girlfriend is questioned after he is found burned to death; police question a suspect in the murder of a teenage girl.
A suspect turns the tables on police; a babysitter is suspected of abusing a 5-month-old infant.
A mother and her two sons are killed and the prime suspect is one the best friend of one of the boys; police try to crack a murder suspect.
After seven years of investigation, Sgt. Mike Huffy finally has a murder suspect; Victor Regalado uses his memory of a previous shooting to break down a suspect.
Sergeants Randy Kaps and David Wells try to trip up a homeless man believed to be involved in four grisly murders; the questioning of two murder suspects comes to a surprising end.
Sergeant Robert Jaworski and Detective Cliff Porter break down a stabbing suspect's story; Detectives Shannon Lucy and R.J. Wilson get a shocking confession from a murder suspect; Porter plays suspects against each other.