I'm wondering if he's tired of waiting and has designs on, shall we say, overthrowing the king? As much of a pussy as he is, I wouldn't put it past him, and of course he'd get off on an insanity plea.
I wouldn't put him past it to try it if he gets pissed off with his life enough. He is definitely resentful enough to pull something like that. But if he does try it at some point I would expect him to use poison of some kind. Namely because hes too avoidant of direct confrontation. But lucas being lucas, he'd get caught on film buying it at some store and doing searches for it online, and would likely contradict himself on some aspect of whatever happened and get the cops suspicious real quick
I'm not so sure he'd get off on an insanity plea though. He's certainly try it, but generally if you're sane enough to come up with some kind of functional plan you're sane enough to stand trial. Even so he'd likely either get a major jail sentence or remanded to a psych ward for life. His history would absolutely work against him - especially considering that as soon as it became public knowledge that he got busted for murder, a kiwi or a sofalaw member would rightfully inform the police of his history, to ensure the prosecution had all the information about him and the case they should have.
and can you imagine lucas in prison? He wouldn't be able to shut up about diddling kids for long and between that and ranting about his sperm he'd piss the wrong person off real fast and end up in the SHU or killed. Add on to that the fact that he would be assigned a shitty menial job and be forced to work, it would infuriate him. Especially since they get paid like 10 cents an hour. He would be likely get intimidated into giving up what little he had from the commissary as well. Plus he'd be required to have a cellmate, who would not put up with his shit at all. Especially lucas sitting around shirtless, unshowered and eating shitty ramen with pencils. He would have no visitors (well, maybe the odd person who did it just to fuck with him and would just tell him its not in the cards to see him spaz out during a visit and get in shit), virtually no non legal related mail, virtually no money, no young women to leer at, no videos to make or genetics bs to 'research' and nobody who wanted to get within 10 feet of him. Plus he is far too stupid to come up with a workable hussle, so he'd never have more than a few dollars in his account at best, and even if he managed to hold onto whatever he was able to buy he'd be that dumbass who pisses everyone off cause he fucks with the microwave and spazzes out when someone tells him to hurry up or criticizes what hes doing with it
The irony being that in jail he'd at least have access to almost his own toilet, be off the street, and be kept away from the kids he wants to diddle so it would be a step up for him and society in a few ways, but it would be as close to being his own personal hell as you can get. If he ever got thrown in the hole, and he would sooner or later, he'd go stark raving mad. The videos he makes are his outlet to scream about what pisses him off. If he couldn't do that I can see it building up until he just goes off like a spastic, especially in solitary. If he ever got released to the street he'd be a raving lunatic, wouldn't be able to adhere to the rules of his halfway house and be thrown back in prison pretty fast. To say nothing of how utterly institutionalized he would be by then