> My take is this: We present to others, and even ourselves, the illusion that there's just one unified "self"; but really inside there are a number of independent motivations within us. In both cases above, I think there was a part of those people who felt guilty and actually did want to be caught and punished.
I have a different take. Assuming his crime is driven by his beliefs/mission, not being found will not further it. Logically you may argue that it would afford him more chances to carry on but given that we assume him to be driven by strong and passionate belief, he would want to be clearly and explicitly recognized for those beliefs and would want those thoughts to take center stage of public opinion. Carrying evidence also is his way of broadcasting the signal that he doesn't care about getting caught since he did the right thing and has nothing to be ashamed of.
> I have a different take. Assuming his crime is driven by his beliefs/mission, not being found will not further it.
I'm not so sure in this case. It would have been hard for the perpetrator to predict beforehand, but there was so little public sympathy for the victim, and there are lot of people who said they would not help the police catch him. Him getting away would have shown that insurance companies are so terrible and so hated that the public is OK with the murder of those responsible (because if they weren't, they'd help the police and he'd be caught).
Escape would have sent a much stronger message than whatever he could hope to accomplish by grandstanding in a courtroom.
> Him getting away would have shown that insurance companies are so terrible and so hated that the public is OK with the murder of those responsible
That is already proven to a large extent. Sure police are doing their job because of the pressure they have and someone working at McDonald's wants to collect tens of thousands of dollars, but it is pretty clear that he has significant public support based on the outpouring of support in the recent days.
> Escape would have sent a much stronger message
No, escape would have just shown that he is good at hiding. Effectively giving himself up gave an even bigger stage for him to place his point. And he got a lot more coverage by delaying that instead of immediate surrender.
> than whatever he could hope to accomplish by grandstanding in a courtroom.
What is grandstanding for you could be advocacy for another. Only time can tell whether it accomplishes anything.
I have a different take. Assuming his crime is driven by his beliefs/mission, not being found will not further it. Logically you may argue that it would afford him more chances to carry on but given that we assume him to be driven by strong and passionate belief, he would want to be clearly and explicitly recognized for those beliefs and would want those thoughts to take center stage of public opinion. Carrying evidence also is his way of broadcasting the signal that he doesn't care about getting caught since he did the right thing and has nothing to be ashamed of.