Last fall, the American Law Institute, which created the intellectual framework for the modern capital justice system almost 50 years ago, pronounced its project a failure and walked away from it.

There were other important death penalty developments last year: the number of death sentences continued to fall, Ohio switched to a single chemical for lethal injections and New Mexico repealed its death penalty entirely. But not one of them was as significant as the institute’s move, which represents a tectonic shift in legal theory.

“The A.L.I. is important on a lot of topics,” said Franklin E. Zimring, a law professor at the University of California, Berkeley. “They were absolutely singular on this topic” — capital punishment — “because they were the only intellectually respectable support for the death penalty system in the United States.”

via Sidebar – Group That Shaped Death Penalty Gives Up on Its Own Work – NYTimes.com.