July 7, 2015 5:40 pm Mothers Fight Against Heroin Overdoses A group of mothers from Orange County is fighting off heroin overdoses with a drug they want to help train other people to use. Vikki Vargas reports for NBC4 News at 5 p.m. Tuesday, July 7, 2015. US & World Videos 0:32 Rialto substation catches fire 3:00 Kamala Harris meets with firefighters in Altadena 2:05 Pacific Palisades woman loses home and business to fire 0:17 Man detained in connection with Griffith Park brush fire 0:26 Funeral service for Azusa teen killed in stabbing