If a child gets run down by someone who didn't see him...

...an investigation will be launched to find out whether it was an accident (i.e. child did jump in front of car) or a crime (i.e. driver was texting, easily could have spotted child).

Similarly, an investigation should be launched if someone runs down a cyclist. Could be the cyclists fault (i.e. running a red light) or the drivers fault (i.e. running down a cyclist on a cyclist lane where the driver should take care not to run over cyclists...).