"My son, Derek, was able to uncover e-mail accounts that we didn't know existed," Compton said. "From there, he was able to find something that showed a communication from somebody that was picking my son up."
another snip
That communication was the link police needed to get to O'Bryan, who police said admitted that he'd met Compton on an online dating site and said that the teen died during sex and that he kept his body for a day before disposing of it and other evidence in an outdoor trash bin.
http://www.theindychannel.com/news/25851460/detail.html
interesting. the creep might not have even had a driver's license or vehicle. I wonder what the deal is with this other person. could be innocent, just giving Andrew a ride to his destination or maybe this other person was around.
on a more sinister note, it makes you wonder if Andrew knew he would wind up at O'Bryan's house or whether that was just subterfuge. if they met before, maybe Andrew was unimpressed with O'Bryan, to put it mildly. this is speculation of course, but maybe Andrew wanted out once he realized he was being taken to see O'Bryan and that's when things went awry.