I fully put out that yes, there is probably some level of crime that would justify it. However, for a US state I'd say that there are maybe 1 or 2 individuals per year at most.

So in any case you're ever going to see in your life: no they don't deserve it. Even for most violent crimes, year-long torture (which is what generously describes the penal system) is not a reasonable outcome.

So in a jury you should always always always vote no.