Rigor mortis (Latin: rigor "stiffness '', mortis "of death '') or postmortem rigidity, the third stage of death, is one of the recognizable signs of death, caused by chemical changes in the muscles post mortem, which cause the limbs of the corpse to stiffen. In humans, rigor mortis can occur as soon as 4 hours post mortem.
how soon after death does rigamortis set in
as soon as 4 hours post mortem