I've started transcribing Rod Buchanan's TV interview (uncut). This answers the question about why the computer was left there and why they got on the computer.
IMO, the stepdaughter and fiance did not know about the 2008 *advertiser censored*. I think only the stepson did, RB and LB did, and JH's parents (AD and GLD II).
snipped from [ame="http://www.websleuths.com/forums/showpost.php?p=4853502&postcount=6"]here[/ame]
R. BUCHANAN: Um, back in August, or actually a little before August, Harrell was asked to move out of his parents’ home on Gano. Um, they used the excuse that they wanted him to get out on his own, become a man, and take care of hisself.
(Coughs) Excuse me. He didn’t have anywhere to go, and, uh, so they had called our daughter and asked if he could move in with them, be a roommate, and they said sure. While he was there, some things came up missing.
Um, they went out one night while he was asleep, searched his car, found their iPod that he had stolen, woke him up in the middle of the night and told him he had to get out or they were gonna call the police. And, uh, he left his computer and a bunch of disks and asked if they, you know, would keep hold of it until he could find a place to go.
During that time, about a week passed, since they hadn’t heard from him, uh, conversation came up about the possibility that child *advertiser censored* being found on his computer by our, at the time, minor son a year prior to this.
So they went out and turned the computer on and saw things nobody should have to see. At that point they became very emotionally upset, called her mother at work, told her about it.
And we took it to JSO (Jacksonville Sheriffs Office) thinking that was where we needed to take it. Once we handed everything over to JSO, they then sent it back to Clay County to be processed, and Detective Eckhart took over from there.