Final answer:
The manner of death is accidental, caused by blocked blood vessels around the heart. The estimated time of death matches up with the food found in the stomach. Rigor mortis will first show in the smaller muscles within a few hours after death.
Step-by-step explanation:
The manner of death in this case is accidental.
The cause of death is blocked blood vessels around the heart, which is most likely due to a heart attack.
The legal time of death is 9:30am on March 13, six hours prior to the discovery.
The estimated time of death matches up with the food found in the stomach, indicating that the victim had recently eaten.
Rigor mortis will first show on the body in the smaller muscles, such as the jaw and hands, within 2-6 hours after death.