A doctor working for the US prison system has said it would be reasonable to allow a condemned killer with health problems to partially sit up during his execution next month.

A condemned killer who claimed he was innocent of stabbing a woman 138 times, slitting her throat and cutting off her hands has been executed in Ohio.

A former neo-Nazi who shot dead two men and a teenager more than a quarter century ago in a shooting spree that targeted black people was executed today.

A US man sentenced to die for raping and murdering two women 20 years ago has stayed silent publicly about the crimes, refusing even to ask the Ohio governor to spare him.