On September 23, 2013, Nihom Thephakasyon, boarded a commuter train in San Francisco, drew a .45 caliber handgun and pointed it across the aisle. He continued to put the weapon away and pull it out several times. Lost in their smart phones, no one ever looked up until he shot Jason Valdez, a local college student, in the back.It's hard to imagine anyone could be so disconnected from their surroundings, but even subtle distractions can lead to deadly results. Last year, pol [...]
