Why is it always the victim's fault? How can you be 100% sure that the cop isn't always the instigator?

Exactly, life imprisonment is a much better sentence.

Well there are those who wish to see the perpetrator suffer rather than die.

Exactly. It'd be more of a punishment to make murderers spend the rest of their lives in prison. Executing them would be too good for them.

Ok, well answer me this, would you rather be executed or spend the rest of your life suffering?