How They Got Their Guns - The Profiles of 14 Mass Murderers

New York Times

Oct. 1, 2015

Christopher Harper-Mercer, 26, killed nine people at Umpqua Community College in Oregon, where he was a student. He was armed with six guns, including a Glock pistol, a Smith & Wesson pistol, a Taurus pistol and a Del-Ton assault rifle, according to The Associated Press.

• 2008

  Mr. Harper-Mercer was in the Army for one month, but was discharged before completing basic training.
  

• 2009

  He graduated from the Switzer Learning Center in Torrance, Calif., which teaches students with learning disabilities and emotional issues.
  

• Before shooting

  In all, Mr. Harper-Mercer owned 14 firearms, all of which were bought legally through a federally licensed firearms dealer, a federal official said Friday. Some were bought by Mr. Harper-Mercer, and some by members of his family.
  

• Oct. 1, 2015

  He killed nine people in Roseburg, Ore.