`` I do n't know if I 'm going insane '' suspect allegedly said after police encountered him . what could have driven Routh to the alleged murders . Comment: Kyle , whose story was told in `` American Sniper , '' and Chad Littlefield were shot to death on February 2 , 2013 .
`` I do n't know if I 'm going insane '' suspect allegedly said after police encountered him . Comment: Kyle , whose story was told in `` American Sniper , '' and Chad Littlefield were shot to death on February 2 , 2013 .