Dallas ICE Shooting Sparks Fears of Sniper Copycats

Investigators say the Dallas rooftop attack that killed one ICE detainee and critically injured two others bears troubling similarities to other high-profile sniper shootings. Shell casings with anti-ICE messages were found at the scene, echoing tactics used in recent attacks in Utah, Pennsylvania, and New York. Experts warn the use of rooftops as sniper positions poses a growing security challenge.