The guys shooting through a floor show that they shouldn't be a police officer.  They had no line of sight, were guessing where the shooting was coming from, and had no clue if there were other people in the area.  And again, there was no bullet recovered from the suspect with his .40 handgun.  So who was under duress?  They saw a light but didn't hear a gun being fired?  You have proven nothing except your ignorance, once again