RELATED POSTS Rancho Cucamonga Teen Dies After Jumping Off Overpass Onto 210 Freeway Hesperia Man Killed in Rancho Cucamonga Shooting RANCHO CUCAMONGA, Calif. – The Los Osos High School and California State University-Riverside band instructor took his own life only hours after finding out about an investigation, school district officials said. The Superintendent Mat Holton … Continue reading Los Osos H.S. Band Instructor Ends Life Hours After Being Questioned by Authorities