Race subsamples look odd.
I don't think so- it disproportionately affects disadvantaged minorities, many of whom probably "know someone who knows someone who was executed", or just generally feel that their kin are unfairly targeted in executions. Hispanics and blacks being more opposed to the death penalty makes perfect sense.
Yeah. This is one area where the idea that minorities tend to be 'socially conservative' is just completely untrue.
The tendency of such polls has been to show fairly high death penalty support among Hispanics.
In California with its Bay Area Libruls, it's usually higher than among Whites. IIRC it was in the last Field Poll.