A woman arrives home from work and finds her husband with a plastic bag over his head to kill himself. he appears to be struggling to breath. The wife sees her young son dead of a shotgun wound just f

A woman arrives home from work and finds her husband with a plastic bag over his head to kill himself. he appears to be struggling to breath. The wife sees her young son dead of a shotgun wound just feet away. In her horror and rage she hits her husband over the head with a blunt object.Can the M.E. determine which was the cause of death–suffocation or blunt force trauma? Explain your answers in detail.