Tense Moments During School Lockdown in Sunnyvale

Anxious moments for some South Bay parents after their children’s school went into lockdown because of the threat of a gunman on campus. But they didn’t get a phone call from the school for hours. Tonight, they’re angry after watching SWAT teams, with guns drawn at San Miguel Elementary School in Sunnyvale. NBC Bay Area’s Damian Trujillo reports from Sunnyvale.