person who was in charge of this murder investigation. so after the shooting of bill yule's friend, bill ewell decides to take another look at ruben cantu. >> by now, juan moreno had twice failed to identify ruben cantu as the shooter. with ruben in custody, ewell sent a detective to juan's home. >> i took the photos, the forms and a portable typewriter. i showed juan this array. he sat there and looked at them and looked at them and looked at them and he shoved them aside and looked away from them. i know who shot me.who did it. so why do i have to identify anyone out of this photo array. >> i said, well, who did it? he said, ruben cantu. we went around and around. i could tell the guy was very scared. he didn't want to sign anything.