Bryan nodded a bit, "Honestly I feel like Ghostbusters see the worst of humanity more then cops. After all, cops atleast can try to find the ones responsible for rape and murder. Me? I get to clear out the slave pens a hundred years later. Or bust the spirit of the woman whose corpse her murderer put in the wall. Or a few years back in Maine, there was a orphanage Marm who had a mental illness. Her response to the kids going hungry one Christmas was to drug them with a paralytic, douse them in karosine, then locks the doors and light the building on fire."
The rookie ghostbuster shook his head, "That was a "Fun" bust. The spirits suffering and fear was so great that it managed to build the orphanage. Or bring it across as a spectral reflection. Through sheer dumb luck a new orphanage was built there. So I got to spend Christmas eve and Christmas battling demented orphan ghosts that could breath paralytic slime, or fire, and throw fireballs, and saving orphans."
Bryan shook his head as he said, "Although by far the worst bust I went on was one out in the desert. See, people kept going missing, so a small town hired me to find out what was up. Turned out there was a family of cannibals mutated through toxic sludge. A skin walker had abducted and screwed various women over time, making a sort of twisted village. Like back before America existed. For literally decades they'd been inbreeding and abducting people to eat. They were twisted evil things that almost came out of a horror movie. I ended up busting the bastard frying the family members that were "Alive" and busting their ghosts. I was locked up for a few hours the town thinking I'd lost it, then they found the bones."
Bryan shivered a bit, "Acres of them, ranging from Native American to some college kids a few weeks missing in a freezer. That was one of the worst."
The "Rookie" Ghostbuster went back to eating a bit before saying, "Point is, since ghosts tend to resonate from people who die in fear, we tend to see the worst humanity has to offer. However, unlike cops it's not right after. It's 25, 50, 100 year later, or more. We come in, and zap them with atomic fire, and lock them in a tiny box. See why I prefer to think it's only a portion of the soul that remains behind?"