2024年,阿拉巴马州用氮气处决了肯尼斯·史密斯 1988年以雇用为目的的谋杀 在美国首例此类处决 In 2024, Alabama executed Kenneth Smith via nitrogen gas for a 1988 murder-for-hire, the first such execution in the U.S.

1971年1月25日,查尔斯·曼森和三名追随者在洛杉矶因1969年杀害7人,包括女演员沙龙·塔特,被判犯有一级谋杀罪和共谋罪。 On January 25, 1971, Charles Manson and three followers were convicted in Los Angeles of first-degree murder and conspiracy for the 1969 killings of seven people, including actress Sharon Tate. 2024年,阿拉巴马州用氮气处决肯尼思·尤金·史密斯,这是美国首次用氮气处决其1988年以雇用为目的的谋杀罪。 In 2024, Alabama executed Kenneth Eugene Smith using nitrogen gas, marking the first U.S. execution by that method for a 1988 murder-for-hire conviction.