Law enforcement sure devotes a lot more resources to investigating a homicide when the homicidee is a cop.
Someone shot someone in the ghetto? Meh, we’ll get a cop out there to take a report sometime this week.
Someone shot a cop, anywhere? They’ll be swarming over the scene like ants. Closing off the streets, even freeways. Going door-to-door seeking witnesses, even at 4 in the morning. (Ask me how I know that.)
But I don’t know that it takes 18 hours to clear the crime scene. If it happened at about 2:00 a.m. (I think), that would be until 8:00 p.m.
Story-time: Someone (who turned out to be a Hispanic immigrant, illegal I think) shot a cop in my quiet little farm town, several years ago, at about 01:00 a.m. on Dec. 26, 2018, yes, just the day after Christmas. Right down on the corner, three apartments away from me. I was up banging away on my computer (no doubt right here on the Dope) and heard the shots.
You should have seen the swarm of police cars packing the street around the scene. They would never do that for and random schlub like you or me. There were at least six cars, plus the fire department rescue squad and and ambulance or two. They were there for about 4 hours (until about 5:00 a.m.), including knocking on nearby doors (including mine), then they were gone.
When I got up the next morning and walked down there, it was all cleaned up. That was nothing like 18 hours later.
Epilogue: This is just a quiet little farm town, but the story made national headlines, thus the above-linked story at Fox. The fact that the perp was Hispanic, probably an illegal immigrant, caught President Trump’s attention, and he publicly commented on that. Mexico sending their killer illegals to invade and kill us! ! ! !
They caught the perp several days later, in another little farm town near Bakersfield (that is, a long way from here), while he was apparently trying to make his way back to Mexico. His case came up again just a few weeks ago (4+ years later). I forget if he succeeded in pleading unfit-for-trial. Either way, he’s going to have free room and board for a long time. They also rounded up a bunch of accomplices after-the-fact who had helped harbor him.