If people are dropping dead
in the street you don't need sophisticated surveillance, but the chances of that happening are remote.
One would be hard-pressed to think of a more conducive environment for dropping dead
than this scenic but explosively violent Colombian city, where all the wrong people (they are legion) pack guns and even day is a Series 7-style survival game whose object is to make it past sunset with your blood supply intact.
He is teaching the "naive" hatchery salmon a lesson in life by either putting them in a tank surrounded by transparent Plexiglas with hungry cod hitting the other side of the walls, or else dropping dead
, frozen cod in their midst.