Christmas Decorations May Have Motivated San Bernardino Attacker

Tashfeen Malik and Syed Farook / U.S. Customs and Border Protection via AP

One year after the Dec. 2, 2015 terrorist attack in San Bernardino, California, authorities have uncovered evidence revealing that shooter Syed Farook may have been set off after he had to attend a mandatory training session in a room adorned with holiday decorations, including a Christmas tree.