in the first few weeks of june, the pima county medical examiner recorded 29 migrant deaths. after our flight, we learn that the 911 caller died. a 35-year-old man from honduras, his call had come into the air coordination center... >> okay, go ahead with the coordinates. >> reporter: ...which links c.b.p. partners alongside other federal, local and state agencies. >> all the dots are agents, actually. we color-coordinate, based on... >> reporter: ryan riccucci serves as the acting director. his team manages calls placed along the arizona/mexico border, overseeing calls fm cell towers and imagery off of surveillance systems. >> so, we have a decision support system, so that when a call comes in, it's, "where's the call? what condition are they in? is it a rescue? do they have battery life? is it urgent? what capabilities are up?" and then we have to do the pilot calculus, i call it. figure out that bird, how much flight time does it have? how long is it going to take to get to the area? because we don't want to send a bird just to turn it around. >> reporter: every agent in t