"The defunct Federal Assault Weapons Ban limited most clip sizes to 10 rounds; police say the theater shooter had a .2…"

"The three types of weapons used by the man accused of killing 12 people in a Colorado movie theater — a semiautomatic…"

"Police said the alleged gunman had three weapons: a Remington shotgun, a Smith & Wesson M&P assault rifle and a Glock…"

"Holmes and his motives remained largely a mystery, with past associates saying he displayed no hints of a mental illn…"

"Holmes’s use of Smith & Wesson’s M&P15 assault rifle demonstrates the clear and present danger of a gun designed for …"

"The money continued to roll in. On July 20, 2009, exactly three years to the day before the Aurora mass murder, Golde…"

"Millions of theater goers packed movie houses all over the country on July 20 for the opening night screenings of The…"

"Law enforcement specialists who briefed congressional officials on Thursday said that Mr. Farook bought two pistols l…"

"There were five gunshot victims. Two of the wounded were T.S.A. agents, and two others were hurt while trying to esca…"

"The four weapons that authorities say were used in the massacre at a Colorado theater showing of the latest Batman mo…"