I don't believe in the death penalty, although sometimes depending on the heinous nature of a murder, I understand the need for revenge. However, LVH's death penalty was commuted to life in prison and she wasn't alone in that reversal. Hundreds of other inmates also had their sentences commuted. According to this 2018 report many inmates serving time for murder are released before reaching the maximum length of incarceration. LVH has served nearly triple the 20 year sentence.
Unlike many inmates who have been released from prison for first degree murder, I think the lascivious nature of the crime, pushed it into the stratosphere of public condemnation. It had all the earmarks of a Hollywood blockbuster: a beautiful actress, an heiress, a world famous hairdresser, an edgy director and a rag tag group of disenfranchised petty criminals.
Susan Atkins changed her story numerous times to minimize her role in the murders. Tex Watson, coordinated and organized the nightly runs, including their precursor "creepy crawlies" in random homes in LA. He refused to answer direct questions during his parole hearings and very telling, has never admitted to killing Donald 'Shorty' Shea. LVH very early on admitted her guilt in the La Bianca killings. She's 73 years old and seems unlikely to reoffend. She has quite a battle in her future, imo, and without the security of prison walls to protect her she may still feel the full weight of public outrage. In today's climate for Old Testament punishment she may still end up giving an eye for an eye.