You try to establish cause-and-effect where none is justified or can be proved. The murderer you cite could have re-crossed the border as he had done before, and murdered another person in another city. A city that is not a sanctuary city would be no more likely to search out and arrest, prior to any violent crime, every non-documented person in their city of suspicion of - nothing. Lack of documentation without criminal activity is a misdemeanor, not a crime, and itself is not worth the attention of the police. If it were, the police would be out in force in the leettuce fields every day.

Your post, which you have copied and dumped here several times, is ludicrously illogical. Your post is bigotry since citizens have a higher percent of criminal behavior than all immigrants. Your post makes no sense at all.