Helen soon realizes that the Copycat Killer has been following the list of serial killers in the same order as she had presented them in her lecture at the university on the night of her attack, and the two work to figure out where and when he will strike next. Reuben is held hostage and killed in an unrelated shooting incident at the police station, leaving M.J. – now questioning herself after her targeting of the shooter’s brachial nerve failed when he got up and shot Reuben in the back – to continue the search for the serial killer alone.