Yeah. Me too. Maybe because it happened at the same time as Jessica Ridgeway, I get the same vibe of a young and dangerous predator who maybe doesn't have a long record but has some significant clues. Like Jessica's murderer, who had tortured and killed a cat.
That makes sense to me. Supposedly the rule of thumb is that young male perpetrators tend to select very young or elderly victims, people they feel confident they can control and overwhelm. On the other hand, taking more than one victim at a time indicates an older and more experienced perp but more about this below.
So, so, so... where does that take me? It makes me wonder if the boxy white vehicle that was seen that day was being driven by the under aged son of the owner. In Iowa, 16 year olds can get an intermediate driver's license. In fact, reflecting Iowa's rural heritage, kids as young as 14.5 years old can get school licenses under certain conditions, which allow them to drive themselves back and forth from school but since Elizabeth and Lyric disappeared during school break, I think a driver who only had a school license would have looked enough out of place to attract attention.
Back to a hypothetical perp who was maybe 17 years old. Old enough for an intermediate license which would allow him to drive without adult supervision except 12:30 am to 5 am. Any list compiled from the vehicle license databank would show the adult who owned the vehicle. Would they question every single person who owned such a vehicle? I doubt it because such a list would include literally thousands of people. It would only be useful as a way to narrow the potential pool of suspects by comparing it to other lists.
If the registered owner of the vehicle worked, it was probably during the day since most people work during the day. I can think of a dozen ways a kid with a big bad secret could hide vehicle use from a parent who was at work. For instance, have a part time job and occasionally fake shifts to get time to stoke fantasies and go trolling for a victim. If the teen perp was able to function more or less normally in every day life or at least in front of his parents, the parents probably weren't in the habit of checking with his work supervisor to make sure he was actually working all the shifts he claimed.
Why two victims? I just thought of this. The two girls were riding their bicycles but I bet they got separated by several seconds at times. What if, for whatever reason, Lyric was ahead, turned a corner and was confronted by an assailant before Elizabeth got there? The perpetrator just wanted one victim but now he's got two and can't let either one go for fear of being identified.
Or flip it: what if the girls decided to race and agreed to give Lizzie a headstart to make the race more fair? The perp confronts Elizabeth and then suddenly there's Lyric, too.
Either way, the perpetrator could have had control over one girl (either physically holding onto one or showing a weapon) and the other girl would go along out of love and loyalty.