The motives for mass murder vary. The teenager in Buffalo who on May 14th shot and killed ten people, most of them black, was driven by racial paranoia. The 68-year-old who killed one and injured five on May 16th in a Californian church hated Taiwanese people. Guns are simple, reliable tools for killing. A man with a gun and plenty of ammunition can kill more people, more quickly and with far less physical effort than he can with a knife, a blunt object or his bare hands. The weapon Mr Ramos used a military-style assault rifle with high-capacity magazines allowed him to keep shooting until someone shot him. That most of his victims were children makes the crime unusually horrific. Do you think that it is time now for America to tighten its grip on Gun purchase ?

