Taser death
Cops in the North American continent routinely taser people for subduing them momentarily. Though tasers, usually, are not lethal, they can cause derivative deaths due to certain frailities in the humans involved. After all, 50000 volts of electricity being zapped on one's person is not a small jolt.
In the video shown below,Canadian mounties taser an agitated international passenger who arrived at Vancouver airport who died minutes after that.Hm,this is defenitely overkill.