Death of an individual body cell is a slow process that does not occur at the exact moment the heart or brains stops.
Rigor Mortis- Skeletal Muscles partially contract, muscles stiffen and lock in place.
Liver Mortis-The settling of blood, resulting in a reddish or purplish color.
Algor Mortis-The cooling rate of the body after death.
Autolysis-Cells break down from their own enzymes