Maybe it's a stupid newbie thought....I'm really not as on top of things as everyone else here, but would it be ridiculous to think maybe whomever did this took her to a storage unit and did whatever he did? I'm just thinking...I mean, there's a couple not terribly far from her school, wouldn't take a crazy amount of time to get to.
I could see something happening like, new guy in the area for a few months, he notices Jessica, maybe she walks her dog everyday, so he ends up with a dog and starts "running into" her as she's out and he's got his dog/puppy, starts up a repertoire with her - I mean, she is a young girl and if she had her dog with her it could be an ice breaker to start talking, so to speak. Maybe this went on for a couple months. I'm sure he could find out things like the fact her mom slept during the day, if she got to where she thought of him as a "friend" or someone nice. The morning she's taken, it's snowy and rainy, the perp pulls up to her right after she's gotten to the sidewalk in front of her house and mom has shut the door, says hi, asks if she wants a ride up to the park to meet her friend like usual because he's on his way wherever, maybe she gets in voluntarily, he could chloroform her or the like and take off. My only thought with the storage unit is, they may have cameras and closed circuit tv, but if he'd been "storing" stuff there for a while, it wouldn't be odd for him to come in if he'd established a habit of stopping there at a certain time of day. Maybe he started doing something like that, planning on taking her before school because she'd told him her mom slept during the day.
I don't know. Another silly thought maybe. I just was thinking, IF he lived near her and planned this and has POSSIBLY done something like this before, it would be logical to think the cops would comb the area and houses after she was taken and after she was found if he planned on leaving the body somewhere, so taking her home to do whatever, might not be the best idea because of evidence.
*shrug*