Murder is the only thing that an autopsy doesn't specifically give information about. An autopsy can report if the manner of death was a homicide; however, it does not give specific information about the murder.
Autopsies are performed to determine cause of death and manner of death(natural, murder, suicide), and will give an estimated time of death usually determined by the temperature of the body. The human body drops about
1.5°F (0.83°C) every hour after death until room temperature. This temperature dropping period is called algor mortis and allows pathologists to determine and aproximate time of death during the autopsy process.
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