Teens at the Bernalillo County Juvenile Detention Center line up and are checked before leaving the gymnasium after playing basketball. The Albuquerque facility held 13 accused killers at one time this year, the highest number it has seen in years. The state has embarked upon a new plan for juvenile offenders that focuses on treatment and rehabilitation rather than incarceration. But it's a path fraught with growing pains - and to some, peril.