A grandmother. A wrestler. And a serial killer hiding in plain sight.

In Part One, we begin the story of Juana Barraza, one of Mexico’s most infamous serial killers. Known as “La Mataviejitas,” or The Little Old Lady Killer, Barraza targeted elderly women across Mexico City, slipping into their homes under the guise of a government worker before murdering them. We explore her early life, the patterns behind the killings, and how the investigation struggled to keep up as fear spread throughout the city. As the body count rises and police chase the wrong profile, a disturbing truth begins to take shape.

Edited by Max Holechek