had done to these women, just let you know there was no doubt in his mind. he was an evil person >> john booth interrogated urdiales of the night he shot marianne wells in the head in point-blank range. >> what did you do after that happened? >> well, i just -- i didn't really do anything. >> did you think you have the normal range of emotions that you react to situations like most people would? >> i should. >> do you? >> i believe so. >> urdiales enlisted in the marines when he was 19. he was based in pendleton and in california. two years into what he describes as a frustrating year.