Amen. Taking somebody's life judicially is very, very serious business, and I feel, appropriate for the absolute worst cases, e.g. genocide and waging war against your own country (and I don't mean this Mickey Mouse shit, where a couple of disaffected and misguided young men let off pipe bombs which kill a few passers-by, I'm speaking serious existential threats to our way of life and moral order).
OTOH, when you open a newspaper here, and read about the huge number of people being put to death for serious, albeit not devastatingly terrible crimes, one has to wonder if it's always the case that punishment genuinely fits the crime. And interestingly in states where conservative moral values hold sway, and with lots of people of the ostensibly "pro life" POV, where a woman taking RU486 is a terrible thing, but in the same breath, are sending hordes of poor urban blacks to death row at great expense, presumably 'for the lulz'. Texas is about to rack up 500 executions since 1974. To my untrained ear, that sounds like a lot.
Imposing the death penalty isn't cheap nor should it be cheap.
The burden of proof for capital cases also needs to be extremely high. Miscarriages of justice do happen, and it's very hard to apologise and pay compensation to somebody who's dead...