The New England Journal of Medicine’s latest edition has a free full text commentary and free audio on the ethics of the death penalty from a medical perspective.
Full text | PDF | Audio | MP3 direct link
Quite graphic, and very insightful. One wonders why abortion is different.
Gawande A. When law and ethics collide–why physicians participate in executions. N Engl J Med 2006;354:1221-9.