@parados,
My memory goes back to the incident of 2 English boys (about maybe 10 years old, was it ?)
who kidnapped a much younger boy, then tortured him to death
(no guns involved).
The victim was probably not able to use any defensive weapon,
but if he had been able to use one, then I 'd wish that he'd have succeeded
in killing the youthful kidnappers.
Qua most violent crimes, I wish that the victims had been better armed
than the predators (regardless of age).
David