An Army veteran was thrown behind bars Tuesday for allegedly tying her PTSD therapy dog to a tree and shooting him five times at close range — killing the poor pup for no apparent reason while a soldier filmed it. ... Court documents obtained by the Fayetteville Observer describe how she teamed up with her boyfriend, Jarren Heng, 25, for the seemingly random killing earlier this month. The couple allegedly led the white and gray pit bull to a wooded area before tying him to a tree and taking his life. ... ultimately was shot five times with a rifle...