Answer:
in the Brain Stem
Explanation:
When the gun has fired the casing of the bullet would have been expelled from the gun and most likely landed on the floor, while the projectile in this scenario would have entered the victim's brain and destroyed the brain stem. Most likely stopping in the brainstem or nearby it. This is the most likely scenario because the brainstem is what completely controls the bodies breathing, heart rate, and other important functions of the body by giving it instructions. Damage to the brain stem would cause breathing and heartbeat to stop immediately as all communication would come to a complete stop between the brain these organs.
