retrocop - your terminally dull waffle and dry statistics in defence of your hobby does nothing to alter the facts of the tragic incident quoted in the OP - a mother has been careless enough to leave a loaded gun within reach of her toddler, and she has died as a result.
No amount of defence of gun club owners in the UK alters the fact that this happened because negligent adult ignored basic safety regarding firearms and child restraint in cars.
If you seriously think she was one of your defended 'responsible' gun owners who buy and keep guns to shoot targets with, then I suggest you are on thin ice.
If this woman had bought a gun to target shoot, she would have been taught gun safety from the start, and the gun would not have been loaded and under her car seat.
I would suggest that in common with millions of other Americans, she bought and carried the gun for personal self-defence.
So again, I repeat that your endless stats and defence of UK gun club weapon owners is meaningless in the context of this thread.
I do not claim to be a firearms expert, as you appear to do, but I am a student of human nature, and that is the root of this incident.