If that were true I'd be a very sad person. Such is not the case though.
Only 3 Buffalo Cops have died while on duty in the past 29 years.
The last one died driving into a tree. Not shot, stabbed, beat up, etc. he drove into a tree. It sucks the dude is dead, but he wasn't murdered.
Anyway, in that same time span the city of Buffalo has averaged 50 or so murders a year....so that's around 1450 homicides in Buffalo since "79". The solve rate is around 50% for murders.
Of course, if you’re a cop and your shot...you get your very own posse of other cops to look for the perp. If you’re a citizen and you’re murdered, you get a bright yellow tape around your carcass and a nice new body bag to have it put in.
You may get a posse of cops looking for your killer, I don't know, I've yet to see a posse of cops looking for a perp after a civilian is murdered, maybe it's an invisible posse.