Guam - An individual brought in for questioning regarding a domestic violence complaint at the Tumon-Tamuning Precinct was involved in an hourlong standoff with police last night a woman reported to police that she had gotten into an argument with her boyfriend and he allegedly threatened to harm her and forcefully detained her in the car.  GPD spokesperson Officer Paul Tapao says police brought 32-year-old John Francis Leon Guerrero into the precinct. 

As officers sought to get information from him, they noticed that Leon Guerrero became nervous and restless standing up and down from his chair.  Tapao says Leon Guerrero then sprung from his chair and pulled out a knife, putting it to his throat and injuring himself. 

The precinct's operation sergeant, who is also a trained crisis negotiator, was able to talk him down and eventually get him to surrender the knife.  He was arrested on charges of family violence, felonious restraint and terrorizing.

He was confined at the Department of Mental Health and Substance Abuse for evaluation.