but remember sister lehia's p.r.aign, not far away from there, next town over -- >> a person saw a newscast, and they're like, that car's been on my block for a couple days. and thank god they saw that and thank god they cared enough to call it in. >> that call came from here, hammond, indiana, three days after nailah vanished, a black chevy impala. >> we rushed out there to see it. >> reporter: it was hers. >> you opened that trunk, the last thing you want to think is there's something in that trunk. and fortunately there wasn't. >> you obviously do a workup on the vehicle. did you find any prints, any dna, anything useful at all? >> i think the way our technicians described it, it was wiped clean. >> including in the trunk? >> yes. >> yes. >> believing somehow she might find her sister, the younger ashley drove out there. >> the car was parked in front of an abandoned house. >> and i went, i banged on the door, looked through the windows, i screamed her name. i didn't want to leave. i had to be taken from that area