The media coverage is clearly slanted. The video shown starts when the RCMP begin to speak to Dziekanski and ends the moment the tazer begins to cycle. They did not show any of the events leading up to the RCMP's dispatching and arrival, or what amount of violence and intimidation the subject was exhibiting in the time lapsed. Neither did they show the struggle after the tazing.
I have seen mention of furniture throwing and broken glass. If this is the case, with my knowledge of RCMP policies I would have to rule they acted within their training parameters. Furthermore, if he was using a "simple stapler" as a potential weapon or projectile they were again justified in the use of force as per the RCMP use of force continuum. Wether or not the force's policy on the use of Conducted Energy Weapons needs changing remains to be seen, but based on the information I have, the mounties did what they were taught.
I am sad to see the CBC will succomb to Americanized drama news; leaving the pertinent details on the editing room floor in the persuit of dramatic headlines. I caution you to take what you hear with a grain of salt.
Nothing like a good lynching! Honey...go get the kids!