Are gun buyers being too quick on the trigger? May 1998, Springfield, Ore.: Then 15-year-old Kip Kinkel gunned down his parents, two Thurston High School students and injured a dozen other students.November 2005, Tacoma Mall: Dominick S. Maldonado, then 20, injured seven in a shooting spree at the Tacoma Mall. The most seriously wounded victim, Brendan “Dan” McKown, was paralyzed. McKown had drawn a pistol and confronted the gunman before he was wounded.November 2009, Parkland: Maurice Clemmons, 37, shot four Lakewood police officers to death in a Parkland coffee shop. He was shot by police two days later.May 2012, Seattle: Ian Lee Stawicki, 40, killed five people — four at a cafe and another in a carjacking — before he shot himself.Vancouver resident Mark Havens learned to shoot his father’s rifles as a kid. He had never owned a gun himself until he bought one this week.Even though the 43-year-old was already weighing the idea of buying a gun for sport and home defense, he found himself browsing firearms at a time when the issue of gun ownership is more explosive than ever. Last month’s shootings at Clackamas Town Center in the Portland area and Sandy Hook Elementary in Connecticut thrust gun laws to the forefront of national debate.“It’s strange timing,” he said. “The political winds are swinging in a direction of panic.”Data show interest in gun ownership spikes after mass shootings and other major events, such as the 9/11 terrorist attacks, that rattle people’s sense of safety, even though they would probably do more to prolong their lives purchasing running shoes than firearms.