"Exactly," he agreed to the first part with a slow nod, glad the angel was starting to go with it, if only a little.

"Track, find, bag, catch. Sometimes we use it to get them to tell us where they are, sometimes we use it to find them where they're hiding. All depends on the unsub. Strategy's different depending on what you're dealing with.

"Most importantly, we do our best to keep as many bodies off the ground as possible."