I do not have an opinion on lifer's being set loose.
I know that USA has the highest rate of incarceration in the world. I also know that a life sentence is a 3rd conviction sentence in the USA. Also, few states still practice the death penalty, no matter what the crime.
A number of threads here on this forum discuss arrests, and convictions that are suspect in many cases; or, alternatevely, seeming systemic indiference to significant crimes both violent and white collar.
So, who exactly are they letting out?