person. i've been able to discover what empathy is, what remorse is. >> and yet lennon is a murderer. he executed a man in cold blood -- alex lawson, whose family lennon knew. >> this is alex's death certificate. alex was shot about 18 times with an m-16. taisha lawson is alex's sister. >> he blew parts of his body off and continued letting rounds go. you didn't have to shoot him 18 times to kill him. 18 times. that's a cruel, cold person. john lennon is a killer. he's a killer.