Earlier quoted context omitted.
So, cyclists can't physically cause road accidents that kill drivers? Interesting (and false :P)
I can't think of any scenario where a driver could kill somebody in an accident where the driver isn't at fault for it, except for cases where the cyclist at fault gets themselves killed. How does it work?
This seems really simple: Cyclist decides to swerve across lanes without signaling, causing a car to need to break and swerve into a concrete barrier (or get hit by a truck, or whatever), and die.
Cyclist is at fault for not signaling (among other things). He caused driver to die.
I don't see why the cyclist would die in this scenario, assuming the car was successful in avoiding them prior to driver's death.