FORT LAUDERDALE, Fla. – A 23-year-old man who posted on Facebook, “I don’t know why I don’t go on a killing spree.” A West Palm Beach couple who shot up their home while high on cocaine. A 31-year-old Gulf Coast man who pointed a semiautomatic rifle at a motorcyclist. All four Florida residents had their guns taken away by judges under a “red flag” law the state passed three weeks after authorities say a mentally disturbed man killed 17 people in a shooting at Marjory Stoneman Douglas High School in Parkland two years ago Friday. The law, supported by legislators of both parties, has been applied more than 3,500 times since, with the pace accelerating during the last half of 2019.