We are learning more details about Monday’s deadly shooting at the Islamic Center of San Diego.  The mother of the 17-year-old suspect alerted police two hours before the attack that her son was missing, suicidal and took her car and several guns. Police say both teenage suspects died by self inflicted gunshot wounds after killing the Center’s security guard, a teacher and a food store worker.  Investigators acknowledged they found hate speech on one of the weapons and writings about racial pride.