Medical errors still kill more than CV-19.
President Trump is not administering drugs. As always, the decision to prescribe drugs is between the doctor, patient and patient’s family. I suspect the patient died of heart failure because their lungs were unable to supply oxygen to vital organs. If the patient died of an improper does, they can sue the doctor, but I suspect this is just a grieving family looking to scapegoat the President when their family member was already too far gone to help.