Mathematical calculations weigh the chances of coincidental deaths, here, as highly improbable.
Then add the obvious motivations of well-being opponents, and the likelihood chance-factors increase exponentially!
Life, liberty, and property do not exist because men have made laws. On the contrary, it was the fact that life, liberty, and property existed beforehand that caused men to make laws in the first place. ― Frédéric Bastiat, The Law