Demetrius T. Frazier, convicted of murdering a Detroit teen in 1991, was executed by nitrogen gas in Alabama after an unusual transfer from Michigan.

Alabama has carried out the nation’s 4th nitrogen gas execution, putting a man to death for the killing of a woman who was raped and shot during an apartment break-in

A “vicious” killer and rapist was executed by the state of Alabama on Thursday, becoming the fourth death row inmate in the U.S. to be executed with nitrogen gas.