Some people don't way to spend their time and money running instances for a bunch of people they don't like.

Better call the cops.

Yes, and I would argue that it's crueler to put an innocent person through that drawn out process than it is someone whose mistake or carelessness actually caused an innocent life to be lost.

It is a mistake worth dying over? Maybe not, but as long as there is no consequence to getting it wrong, there is literally zero incentive for public officials to get it right, especially those wanting to prove themselves "tough on crime"

Do we ever give the death penalty to someone who kills someone by accident or in an unfortunate situation?

No, but we sometimes give the death penalty to... people who didn't do anything wrong? And maybe, just maybe, it's too easy, too consequence-free, for the state to take someone's life, if it just happens by accident sometimes.

Eternal Darkness was so good.

So that when they say "you take out a loan, you pay it back," you can point out to them that Donald Trump filed for bankruptcy (i.e. didn't pay back his loans) five times in his life.