I'm part of the Great Unwashed. Wait: as of 2004 I 'own' 1/7th of an acre of California dirt. Maybe I'm now part of the bourgeoisie. And didn't Idaho buy a house a couple years back, too?
Anyway, I oppose capital punishment on principle: it ain't right for an individual, or group of individuals, to end the life of another. I oppose War and Murder on the same grounds. But, since we still have War, we also have to have Cap'l Pun'mt too, for when somebody does it (war) wrong. Likewise, since we keep murdering each other, we need to have CP as a last resort.
The trick is in accurately assessing guilt when murder has happened. We've been shown to've made mistakes before, so it makes sense to me to still have it on the books, but not used except in cases of absolute certainty (un-coerced confession + 3-4 eyewitnesses + DNA). And those rare occasions should be abhorrent to all but the victim's families.
Bookmarks