What do you think about this: is the death penalty is appropriate and why?

In my opinion the death penalty can be fair and unfair. It's fair to the families whose loved one's had been murdered at the hands of evil people. But it's unfair to some who have changed while rotting away in jail and die anyway. I think another way that it is unfair is that some people are accused when they hadn't even committed the crime leading to a death an innocent person who was just in the wrong place at the wrong time