Could be. Actually, that makes sense, but it seems a bit of a 'volatile' clue, though, as some marksmen could potentially change rank by posting before the clue is solved.
None of the cops are Marksmen, so that's in keeping with the "none of the cops / has an aim / like that of my victim" lines.
The Marksmen -- at the moment -- are:
bibfortuna25
Ellessar's Socks
gil-estel
GlamdringJosiah_of_Rohan
Mythdracon
NappyKorn
TheJord
Any of them seem to fit into the clue better than the others?
Incog seems to be saying that the victim is potentially dangerous-- which could point to Mythdracon, along with the line "before i fire." Granted, that's Incog firing, but it might have something to do with Dragon's (dracon) fire.
Or not. That doesn't quite seem to fit.
I'll keep looking, in case it's not based off marksman.