My friend, you must first understand a question, what is death. With the development of medicine, the standard of judging death is constantly improving. Recent brain death is the most important criterion to judge death. Brain death means that brain cells have died. Although the heart is still beating and the lungs are still breathing under the maintenance of medical equipment, once the medical equipment is removed, everything stops. This is also a biological death, and there is no possibility of survival.
As for the charge: according to the current law, whether it should be intentional injury or negligent death depends on his motivation and purpose; It should be a felony.
I hope my answer can be useful to you, thank you!