Theology divides evil into two types: natural and moral. Natural evil are things that happen when no free will choice is involved. Moral evil is the result of evil free will choices.
Natural events/calamities are not accidents, they still come about through cause and effect.
The driver has been charged , so at this stage it seems he did something in his free will to ultimately effect the fate of those children., so the incident was no mere accident exonherating him of responsibility.
-Bulletproof and Waterproof don't mean Idiotproof.
