Wow. I finally get to post. I'm a newbie.
I am here because for some reason, I have taken interest in this case. Jessica seemed like such a nice person and what has happened to her really makes me angry. So much for my emotions.
I joined because I wanted to offer my opinion. I think you may have a serial rapist/killer. If you look in the NamUs database, Lisa Night disappeared on June 8, 2012 from Ossineke, MI. She was 29 years old, about 5' 0" tall, blonde hair, between 110 to 130 lbs. She had tattoos and piercings. All this sounds very similar to Jessica.
I believe they said the van was headed north. Ossineke is north of North Shores. Mapquest says it's about a 5 hour drive from North Shores to Ossineke. Split the difference that's about 2 1/2 hours to either location. Very convenient.
My observation of these kind is that they abduct the victim, have their way with them and then terminate them (let us hope not in this case). For some time they are fearful of getting caught, to some degree remorseful and satisfied. But after some time ( about 6 months or so), their desire takes over again and they repeat with a victim of similar characteristics. The more often they do this, the less time there is between occurrences as they lose all sense of conscience and become braver. If my suspicion is correct, Jessica maybe his second victim ( thus the few little mistakes he has made).
Just a theory, my gut leads me there.