Kiss of Death?

A 39-year-old quadriplegic woman is found dead in a park over 100 feet away from her wheelchair. Marks on the ground indicate that she may have been dragged across the park. It’s up to Dr. G to determine whether the woman was a victim of foul play of if she died of something else. A 50-year-old man dies en route to the hospital. Then man was diabetic and had a bad heart, but he had recently been suffering from back and shoulder aches and a sore throat. Dr. G. must find out whether he died from a long term health problem or complications from his recent ailment.