What happens to the heart when a person burns in a fire resulting in death?

When a person burns in a fire resulting in death, the heart can be severely damaged due to the intense heat and smoke inhalation. The heat can cause the heart muscle to become necrotic, leading to cardiac arrest. Additionally, the toxic gases and chemicals released during a fire can also damage the heart and other organs, further contributing to the person's death. Ultimately, the heart may stop beating due to the extensive damage caused by the fire, leading to death.