In the UK many pedestrians are killed by motorists illegally driving on the pavement (sidewalk) every year. The only example of a pedestrian being killed by a cyclist I can think of happened on the road, and was so rare it was a major news story.
You clearly missed "Well thanks. Maybe a car would have been better".
I don't say cyclists kills people, of course not, you need to have a very bad circumstances for it to happen (mostly - hit the head on the pavement or have a great weight disparity, like running over a kid), but arrogance of many cyclists (just as like as arrogance of many pedestrians, especially on bicycle lanes TBH) coupled with speed and weight is a dangerous combination.
OP's comment has a light "bicycles are less dangerous than cars" fleur in it. Sure, of course 1000kg would always be heavier than 100kg (m * v = F; I know), but the problem is what we don't (or at least shouldn't) compare cars with bicycles here. We should compare how dangerous are both to pedestrians.
