A body was fished out of a lake last night at approximately 1 am. The medical examiner recorded the internal temperature of the liver upon arrival as 28.42 °C. Estimate the PMI for the body found at the scene.
Recall that a body loses 0.78 °C/hour for the first 12 hours, and 0.39 °C/hour afterwards. Average body temperature is 37.0 °C.
_______ hours (exact answer)
Given the circumstances, should the forensic pathologist increase or decrease the calculated PMI estimate? _______ (type "increase" or "decrease")