This is Revolting
Ryan McMaken of the LewRockwell.com Blog links to this story today:

Did Missouri execute an innocent man?
New information leads prosecutors reopen 1980 murder case

Mr. McMaken notes:

Back in the much more civilized middle ages, at least two witnesses were required to see a person actually commit the crime for conviction of a capital offense. No such luck in the Land of the Free.

[link to blog post via A conservative blog for peace]