Here's What 3rd, 4th, and 5th Chances Get You
The mayor's lack of knowledge of weaponry notwithstanding, there is one patently obvious policy that definitely would have protected the officer.
If Levon Warner had served his full sentence, he would've been in prison until 2012. He could not have committed any crime in 2008.
If Howard Cain had served his full sentence, he would've been in prison to 2052. He would not have murdered anyone in 2008.
If Eric Floyd had served his full sentence, he'd have been in jail, not robbing banks, in 2008.