Did You Leave It There?

The FBI knew nothing about Brian Lovelace and the Bar incident, but they kept investigating Bianca's death. The agency started conducting a series of ballistics tests in their lab. They were able to figure out that there's no way on earth she was able to shoot that gun. So who did? The FBI had a prime suspect, not in Africa or Arizona, but Mexico. Coming up: Mexican police came in to ask for people's passports. An arrest in the case, at last.