dave neese watched horrified as there on the tape out walked skylar. >> she slowly walked down to a carhat was sitting there waiting on her. she got in the back seat. i could tell that. and she drove away. >> police couldn't quite make out a license plate or tell the make or model. skylar's mom mary had a theory. >> she made it home, snuck back in the window, then a second person or persons had parked behind the building and she snuck out a second time. >> but why? who was in the car? and where did they go? the police didn't issue an amber alert because it looked like skyler left voluntarily. >> once the video came out that she willingly got in this car, they're not going to come out and look for someone driving in a car. >> skylar's friend sheila came over. >> she spent a lot of time telling us, it will be okay. she'll be home. i really miss her. i love her. i want her back. >> the next day, sheila sat with mary on skylar's bed, both of them crying. >> did it bring you comfort when sheila would come by, being skylar's best friend? >> it did me a little bit, yeah. knowing, how could sky