smoker
Striker
That's not the full story though is it? He may have had another motive for killing the lad besides thinking he was a copper.
That's possible but it's not part of his case against NP.
"I didn’t know someone with a gun was intent on killing police officers. If I had I wouldn’t have been shot. I was a sitting duck."
The case seems to rest on NP not passing on a later telephone warning from Moat where he threatened to target coppers.