There seems to be an attitude here that some event (robbery, attacking a cop, whatever) shouldn't be a death sentence. and the person didn't deserve to die. This is true, but it doesn't change the fact that people can engage in risky behaviors that increase the likelihood of death or injury that they don't deserve.
Excessive speeding, base jumping, and attacking a cop are all things that have the potential to lead to death.
The facts aren't entirely clear in this case yet, but consequences aren't some black and white with no punishment and instant death the only options.