At noon, a female corpse was found partially submerged on the shore of a lake. The air temperature was 26.7°C (81°F), and the water temperature was about 15.6°C
(61°F). Rigor mortis was not evident, and the body's temperature was 15.6°C. Livor
mortis showed a noticeable reddening on the victim's back that did not disappear
when pressed. Bacterial activity was not significantly increased, and the lungs were
filled with water.
Approximately how long ago did the woman die?
a.
b.
Justify your answer.