Hal,If I kill a pedestrian, god forbid, it won't happen on the pavement it will happen on the road. Even on the road it is highly unlikely, more likely that I will be killed by a lorry or dragged 9 minutes kicking and screaming under the wheels of a london bendy bus etc - you get the picture?
Its highly unlikely you, or any other cyclist, will kill pedestrians. There was some data (that I posted on here a couple of months ago but can't now find) that shows that, even on pavements, pedestrians are more likely to be killed by motorists than by bikes!
Frank