Watch the news report: 

Can you say excessive force?  According to the witnesses, the skateboarder was on his knees when the police handcuffed then tackled him.  They then proceeded to tase him while he was lying on the ground.  The police claimed they only tased him twice (which is excessive for someone who is not being violent) but witnesses claim he was tased several times.

Coming of the heels of the UCLA taser incident, Im really starting to get tired of this shit.