>> my name is lukah chang. >> i want to write it down. what's your last name? hang, 23 years old, the son of christian missionaries. a deserter from the u.s. marines who drifted into town without any plan and stayed in that downtown motel where he encountered a maid named amyjane. >> did you talk to her? >> no. only in passing like she would knock on the door. >> soon he was broke, living on the street, spending his days at the town library across the street from the travelodge. >> you just walked by and you saw him. >> i saw her working. i saw her working and just -- >> how long did you have to wait? >> probably a half hour. >> you're waiting there a half hour, you're thinking to yourself what? >> i'm going to do it. >> grabbed her, brought her into the motel room or into the bathroom and then what happened? >> i stabbed her. >> with what? >> a knife. >> when detective jackson tried to get into this young man's head, the conversation veered off into a cold and disturbing place. as a missionary's son, was lukah chang rebelling against his parents? against god? d