April 20, 2018 8:18 am Teachers Protest Gun Violence Ahead of National School Walkout Several teachers from Marjory Stoneman Douglas began Friday protesting outside the school where 17 people were shot and killed just over two months ago (Courtesy Ari Odzer) US & World Videos 0:46 10 people shot outside Seminole County bar, teen arrested: Sheriff's Office 1:06 Two people robbed at gunpoint in Miami: Police 9:28 At least 17 people died in Florida after medics injected sedatives during encounters with police 1:18 14-year-old accidentally kills his brother with a gun found in an alley 10:58 Behind the Door: Exclusive video shows police raid inside Miami Springs hotel room