NO... you take a life you give up your life! it's really pretty simple. Why should we, the tax payers, foot the bill for all these scumbags who took another person's life?
Now I'm not talking those who killed in the heat of passion or by accident but rather those you planned it out, thought about what they were doing and then carried it out with pleasure.
Oh and BTW, Allie, I'm not disputing wanting to kill someone who hurt your child but the fact remains that the man did not actually commit a crime by reving his truck and offering popcicles to the children. Was he a registered sex offender? Do you presume every person in the neighborhood is who nice to children has a nefarious intent? Maybe he did I don't know... but I'm pretty sure if he didn't take offense to what you said AND he stopped, he probably wasn't intending what you thought and stopped not because he was guilty but rather because he did not want to be viewed as a pervert.
IF his intention was to molest the children of your neighborhood, your warning wouldn't have done shit to stop him IMO. Pedophiles are pathological in their need to satisfy their desires...some mom getting in his face wouldn't have deterred him, at least not for long.
Did he move shortly after your warning?