I know it's impossible to prove the negative, but one of the advantages of a taser--and it's kind of the opposite of Mr. Ménard's statement--is that we would have no way of knowing, I suppose, how many people may not have had the use of lethal force because the officer had the option of using a taser, and that would be the intent of the taser.
On January 30th, 2008. See this statement in context.