kelly clayton: no, dockweiler beach.ankiewicz: dockweiler beach is about eight miles from marie and andre's home... near los angeles international airport, where flights leave daily for moscow and beijing. josh mankiewicz: on tuesday, november 15, 1994, four days after marie disappeared, andre himself went there to post fliers. he had an encounter with a perfect stranger and asked for help. and that's when this story... took another strange turn. craig melvin: coming up tim cunniff: i couldn't believe that i was seeing the car that this man was just looking for! craig melvin: a huge break in the case craig melvin: when dateline continues. improve your protection against trackers, malicious websites, and malware ridden downloads. >> get the deal now. >> gary, use car shopping can't hurt you. >> but what if i overpay? >> come out and i'll show you a better way. well, you said. i know. i said nearly half of all used cars have been in an accident. but there's no reason to shop with fear. well, show me carfax. knowing how a c