FBI and police continue their investigation in the neighborhood near the SUV vehicle in which two suspects were shot following a mass shooting in San Bernardino, California December 3, 2015. Authorities on Thursday were working to determine why Syed Rizwan Farook 28, and Tashfeen Malik, 27, who had a 6-moth old daughter together, opened fire at a holiday party of his co-workers in Southern California, killing 14 people and wounding 17 in an attack that appeared to have been planned. REUTERS/Mike Blake