If you breathe the gas in and there is no oxygen in it you can die pretty
quick. A very reasonable conclusion by the police. It will happen with nitrous
oxide as you have in some dentist's office except I believe it comes 50-50
with oxygen now. When the dentist had to mix the oxygen with the NO then an
occasional death would occur as once in a while they did not get the mixture
right. I saw this with one of the older anesthetics a man wanted to get a
"charge" from the anesthetic and inhaled the gas free of oxygen and that
This story is like a Greek tragedy.
I don't believe these deaths were accidental. It seems more like
"murder-suicide". How else was the doctor going to be able to make
money, when his license was revoked?
Wickedness never was happiness.