The cop is at direct, immediate fault because he shot without knowing what was behind the suspect. Just the same as if we did so. Whether he gets charged, disciplined, or fired will and should depend on more information, such as was the gunman actually firing or did he just see him and open fire?
A wall was behind the suspect. What was the cop supposed to do? Ask the suspect to wait while the cop ran inside to make sure no one was on the other side of the wall? On the other hand, it's why cops have tasers, but I don't know if a taser was used but not effective or if it was not used for some reason.
Just a few days ago, some were upset that a security guard didn’t open fire at the Gold Coast Ferrari dealership in ChiCongo with customers around as 2 thugs were stealing those high watches
This is why you just don’t do that unless you want prison time