Evidence that stun guns may stimulate the heart / Eurekalert, 2 May 2008
http://www.eurekalert.org/pub_releases/2008-05/cmaj-ets050208.php
"On the eve of the British Columbia inquiry into the death of Robert Dziekanski, a review of scientific data in CMAJ (Canadian Medical Association Journal) finds that in some cases, stun guns may stimulate the heart in experimental models. This evidence is contrary to current views that stun guns only affect skeletal muscles."