Multiple agencies participate in active shooter training held on Fallbrook High School campus Jan. 9

[embed]https://www.youtube.com/watch?v=MgTVvvrDTuE&feature=youtu.be[/embed]

**Watch the video attached to this story for an explanation of the training exercise held by law enforcement.

Noises coming from Fallbrook High School on Saturday, Jan. 9, included screams for help, gunfire, and more. Law enforcement vehicles were plentiful and a helicopter whirred overhead. All this was part of a multi-agency drill held so officers and emergency responders could practice in the event an active shooter came to the school.

While the Sheriff's Dept. and North County Fire practiced their strategies, volun...