I don't remember the laws about this but for the girl who lied about her age and was a minor, maybe the suit is because of the multiple laws he would've broken at the time of the incident? Statutory rape, travel to have sex with a minor and possibly cheese pizza? I could imagine that a good reason for this to happen years later.
Or even worse, there's another victim we don't know about. It's not impossible given what we do know.
A civil suit isn't about illegal things someone has done, it's about harm someone has done to you. So, for instance, interstate travel wouldn't even be a factor at all because them traveling did not harm you at all. For harm to have been done though, it has to be shown that it's not your fault that the harm happened, but the fault of the person you're suing, this is where potentially-illegal acts can come into play. You are NOT prosecuting them for those illegal acts though, you are prosecuting them for the effects they had on you.
So for instance, with cheese pizza, you're not suing because it's cheese pizza, you're suing because of the emotional harm of the person having the cheese pizza caused you. Now, if you willingly gave up pizza of yourself, you'd have no case since you did it to yourself, but in the case of cheese pizza, by virtue of you being a minor, that places the responsibility on the person you're suing, and it's not your responsibility.
Again, you're not punishing them for having cheese pizza, you're collecting recompense for the emotional harm it caused you.
Incidentally, regarding the interstate travel, people misunderstand the law. US law makes it illegal to cross state lines for *commercial* sex with someone under 18. This usually doesn't need to be enforced since it's already illegal in every state, it's more meant to prosecute people who travel to other countries where they might not be prosecuted by local authorities for having sex with a 17-year-old prostitute.
For non-commercial sex, it is only illegal to travel for the purpose of having sex with someone under 16 or where the law prohibits it. This means that they won't prosecute someone going to see their 16-year-old girlfriend who lives across a town that happens to straddle a state line, provided it's legal there. This is kind of important as most states have an age of consent of 16, and no state has had it lower since Hawaii raised it from 14 in 2001, Georgia from 14 in 1996, and New Mexico from 13 in 1987. Thus 16 doesn't affect domestic travel at all, but only focuses on international travel.
Maybe I'm retarded but how does a Jane Doe plaintiff work? How does that work with your 6th amendment rights? legalfags explain
The confrontation clause of the 6th amendment only applies to a criminal trial. Most of the protections for defendants in the constitution only apply for criminal cases. In a civil suit, you are not being charged with a crime, you are being billed for damages, or requested to stop infringing on the plaintiff's rights.
This is why civil suits can be used by rich companies/people to bully poor people. The poor people do not have the right to an attorney and are left up the creek. (This is also why SLAPP laws were passed, so that defendants could countersue with an attorney that gets a cut of the judgement, when a case with little to no merit is being used purely as financial abuse of the defendant. Unfortunately SLAPP can be hard to prove and thus only stops the most egregious of cases)
That said, testimony is still needed and a defendant can probably figure out who the person is from the evidence. Unless they have absolutely no idea who the person is (which they can enter as a defense). The Jane Doe status isn't really meant to hide your identity from the defense, it's to hide it from the public record.