Mother of deputy accused in double slaying says she warned him against relationship

The mother of an Alameda County sheriff’s deputy accused in a shooting that left a married couple dead in Dublin says her son had been in a romantic relationship with one of the victims, the deputy’s mother told KTVU Thursday. Subscribe to KTVU’s YouTube channel: KTVU delivers the best in-depth reports, interviews and breaking news coverage in the San Francisco Bay Area and California Watch KTVU’s newscasts on Download KTVU’s news and weather apps for free at Subscribe to KTVU’s newsletter at Follow KTVU on Facebook: Follow KTVU on Twitter: Follow KTVU on Instagram: