True, but still he is not a doctor to judge that fully well. And then, if you really want to not get caught after breaking a signal, you can also act to be really sick. We don't know the condition of the patient inside the car at the time warden intercepted. It's not necessary that a person who has died, has to be in a very very bad phyiscal shape before dying, you know.
On another note, it's very very common that due to doctors or nurses lack of attention, many patients die across the country, just because of negligence. The docs may be relaxing, or busy in their lunches or chit chat with someone, knowing FULL WELL that some of their patients are in critical conditions. Yet they don't just stand there all the time, it's very hard to do also. And my friends in medical profession tell me many cases of patients who die or get in critical condition just due to the negligence or delays by the doctors. They feel guilty, yet that's life. Noone takes a protest against them. And here a warden who dun know that the patient was in that serious condition, in fact not knowing even if the patient is really sick or acting, is being held accountable. As I said accident happens, that's fate.