More Death Penalty Maps

This, from University of North Carolina Political Science prof Frank Baumgartner:

I've compiled a geo-coded database of every execution since 1976? Slides 17-19 on this slide show give some overview of the data.

He is co-author of The Decline of the Death Penalty and the Discovery of Innocence.  More on the book, here.  You can order it from Amazon.

Still more from Baumgartner, here.