Does a life sentence really serve as a deterrent?
I think I've read that studies show it doesn't. ( I'd take a guess on the stats but
@Alligatorob is fact checking me.

) Just as you say, Sunny, the typical criminal is not very smart or self-aware. He doesn't care what the sentence is because he doesn't think he'll be caught.
@Knight's link is an example of why I think Van Houten should be let out. Criminals with far longer rap sheets than hers walk after a few years. It's those revolving door criminals who are the repeat offenders.
But what are we really talking about here? I keep hearing details of her crime and they're terrible, but so are the details on most murders, we just don't know about them.
I agree we need longer sentencing for most crimes, but I think we should try for some sort of evenhandedness in our courts. Just because we saw reenactments of her crime on TV she shouldn't have to serve almost three times as much as other criminals just because their crimes weren't as famous. Maybe if we saw re-enactments of some of the other thousands of murder cases, some that involve children and slow torture, we wouldn't think she was the worst person who ever lived.
Are we going to base our judgements and sentencing on public opinion and videos now? Everyone saw the video of George Floyd dying so Chauvin get's an extra long sentence. No one had a video of George Floyd breaking into a woman's house and pushing s gun into her pregnant belly while his friends robber her, so it's like that never happened and he's a national hero.
A judge got in trouble, something that almost never happens, because the public didn't like his sentencing for Brock Turner. His sentencing had been in keeping with other similar cases, but in Turner's case the victim happened to be a really good writer who had written and published a moving essay about how much the incident had hurt her (although she admitted she had no memory of it.) What about all the actual rape victims who aren't good writers? Shouldn't their assailants be punished as much? Well they aren't.