Deadly shooting outside the Islamic Center of San Diego has left three people dead after two teenage gunmen opened fire near the mosque complex in California. Victims included a security guard who police say may have prevented an even deadlier mass shooting inside the mosque. Authorities later found the two suspects dead from apparent self-inflicted gunshot wounds. Investigators are now examining possible anti-Islamic writings recovered from the suspects’ vehicle, while the Federal Bureau of Investigation has joined the investigation into a possible hate crime.