JMO, but I don't believe anyone related to these girls is involved in any way in their disappearance. I don't think it's anyone that has anything to do with meth that involves Lyric's parents. Who on meth wants to bother to take two little girls that would need to be looked after? I can always be wrong, like we anyone else, but I can't see someone taking two kids that they have to deal with. When I am thinking of someone that one of the girls knew, I am thinking more along the lines of, "Hi! Remember me? I'm Susie's Dad." "Hi! Remember me? I'm your mailman." "Hi? Remember me? I fixed your Grandma's leaky roof." "Hi! Remember me? I substitute in your class when your teacher is sick." In other words, someone that one of them (or even both) has seen and somene who can say something like one of the examples above that could cause the girls to think, "Oh, yes. I remember him (and therefore, he isn't a stranger)." Then, a little conversation and perhaps one of the girls remembers that they have been gone too long and she says, "Lyric/Elizabeth! We should have been home a long time ago! We're going to be in trouble!" And the perp says, "Hey! My van is parked right over here. Jump in and I'll drive you straight up to Liz's house and explain it to all to Grandma so you won't be in trouble. Then, I'll come right back and pick up your bikes." Off they go....
Here's another scenerio using the same type meeting with a man who they come to believe isn't really a stranger. This time let's put the man himself on a bike. Elizabeth's house isn't far from the Evansdale Nature Trail. In this scenerio the "known" stranger said, "Guess what, girls?! I just talked to your Grandma (or your mom/aunt at the store) and told them I was going to ride down to Meyers Lake. They said you could with me if you wanted to. Come on! It'll be fun!" Off they go down the trail which doesn't appear from the aerial view, anyway, to be as visible as riding down the streets might be. So, they ride down the trail and arrive at the lake. They're hot after such a long ride (it's long for two little girls, after all). Now, the "known" stranger says, "Boy, I'm tired, girls. My van is parked right over on the other side of these trees. Tell you what - let's cut through the woods over to my van and I'll drive you up to Liz's house and we'll get a drink. I'll come back and get your bikes because it would be too hard for you to get your bikes through the woods or you and your bikes won't all fit in my van at the same time so I'll just take you two girls and my bike for now. I'll come back for your bikes after I drop you off. It wouldn't be safe to leave you here alone." Off they go....