Taser International's own EE-playing-"Dr." Mark Kroll wrote what looked very much like a scientific paper. This was his infamous tasers-R-safe comparison of repeated taser hits to ping pong balls.
If one ping-pong ball hit to the head does not kill you, 1,000 probably cannot either.
Get this: Taser International prominently published this crap on their webpage under "Cardiac Safety". It has since been (apparently) pulled from their website, all evidence of it appears to have been purged.
This has "Failure to warn" written all over it.
Thickly layered in sticky hubris.
Taser International's silent pulling this "Cardiac Safety" webpage leaves an implication of guilt, as opposed to an explicit warning to accompany the change-of-heart.