"It is hard to find a rational justification that explains the ease with which people can buy firearms, including assault rifles, in spite of prior criminal backgrounds, drug use, histories of domestic violence and mental illness, or direct contact with extremists – both domestic and foreign," Zeid said in a statement published by his office.
"How many more mass killings of school-children, of co-workers, of African-American churchgoers — how many more individual shootings of talented musicians like Christina Grimmie, or politicians like Gabrielle Giffords, will it take before the United States adopts robust gun regulation? Why should any civilian anywhere be able to acquire an assault rifle or other high-powered weapons designed to kill lots of people?" he added, warning against "irresponsible pro-gun propaganda."
