Police say a 19-year-old man has been arrested on a manslaughter charge in the killing of a high school junior who, witnesses say, was shot in the head during a party at a home in north Dallas.
Organizers are encouraging gun rights supporters to bring unloaded rifles to rallies at state capitols across the U.S. this weekend, pushing back against a wave of student-led gun violence protests that some see as a threat to the Second Amendment.