One day after the head of Colorado's Department of Corrections was shot and killed in his home, Governor John Hickenlooper signed landmark new gun laws on Wednesday, expanding background checks on gun purchases and limiting the size of ammunition magazines.
Filmmaker Michael Moore wrote on his blog on Wednesday that releasing photos from the Sandy Hook elementary school shooting will help tip public offenders to "cease support to the National Rifle Association."
Two men armed armed with machine gun and a handgun opened fire in a bar on the outskirts of the Mexican tourist resort of Cancun on Thursday, killing six people and wounding five, the office of the state's attorney general said.