Okay, but that raises another question. If Kevin came forward motivated by peer pressure, why would there be no fallout from him being misleading in his story? Why would law enforcement make up the story about him meeting a former US marshall at a party, and that the marshall convinced him to come forward?
I'm not sure I'm following your question here, sorry. I'll break it down as I see it, at least as one of any number of possible reasons. He and gf are the perps (hypothetical). So, they tell their relatives they are guilty of a lesser crime. So they agree to give him and her an alibi. Years later one of them gets religion and says he and she have to come clean about driving down the driveway. The relatives know about that, but they don't know the full extent of the
his and
her crime. So, he and she can leave that illusion in place and come forward by admitting he and she were in fact there. Otherwise, his religious relative is going to spoil his entire alibi and all attention will be on him and her for the crimes they actually committed.
As for the Marshals Service, that's nothing more dramatic than the mechanism by which he revealed that he drove down the driveway ... that's all. He did what his relatives asked. It was just how he felt most comfortable doing it. LE didn't have to do anything wrong here at all. And if I were in his or her shoes, this is
exactly how I would do it (hypothetically). This is one way a certain personality type can get alibis, imo.
Whatever his criminal record might be, it doesn't really have any bearing if you just take a sec to look at some well-known serial killers, for example. They are not always known offenders. If he is in LE himself, all the more likely he was never caught, imo.
~ svh
To be clear about your first question; you realize, he is lying to
everyone right? He's lying to his relatives and the police.
I'll provide a concrete example. K+K tell their relatives they sold a pound (?) of crack cocaine to DR 15 minutes after the abduction, and no one realized yet anything else had happened. His family agrees to give him an alibi for the time of the abduction, even though he wasn't with his relatives then. They do this to protect him from scrutiny over the abduction. And the family doesn't talk because they believe they have a good reason to; the two will likely be inculpated in a much more serious crime if they don't.
Relatives never make good alibis and this is just one way they can be made to order. I'm not saying this particular example happened, I'm illustrating how it can happen, and how easy it is.