This is a tragic inncident!!!, my heart felt symphathies go out to the family of this young man!!. I am sure the officers in question are also going through alot of what ifs!!!! As for the age of the 16 tear old being out at this time, is that times have changed from when we were kids, and parents dont seem to have the discipline now a days, the reason being is that there is so much child abuse and in our days it was not recognised or it was but never talked about which is another tale!!! Kids of this day and age seem to do what they want (UNFORTUNATELY). As for the sirens not being used, I thought it was the law that between the hours of 11pm and 7am you can not sound them, please correct me if i am wrong.