The mother’s calls to police Monday morning painted an alarming picture: Her 17-year-old son was missing, along with several of her weapons and his car. The boy had left a possible suicide note before vanishing with a man he met online whom she had never seen before – both dressed in camouflage, she told police. Police were still searching for the woman’s son two hours later when they received reports of an active shooter at the city’s largest mosque, the Islamic Center of San Diego, and found the bodies of three men killed in an attack: Amin Abdullah, Mansour Kaziha...