Wrong about time since death is
Reddish- to bluish-purple discoloration of the skin due to the settling and pooling of blood following death If her body was contoed for four to five hours after death . In 6 - 8 hours , Lividity fully developed and fixed . Ref synopsis of forensic laxminarayana 4e ; Krishnan vij Textbook of Forensic medicine and Toxicology 5th edtion
Less than 1 hour : body is warm
6 - 8 hours : Lividity paially developed and not fixed
12 hours : rigor present all over
1 - 3 months : Body skeletonized
Medico legal procedures