Susan Zirinsky

When dozens of women enjoying their golden years unexpectedly died at Senior Living Communities across the Dallas area, authorities classified the deaths as natural causes. No one suspected that a cold-blooded, serial killer, posing as a maintenance man, was targeting one of the most vulnerable populations: elderly women.

Learn the haunting case of Grant Amato, a 29-year-old Florida man accused of murdering his own family execution style for the love of a cam girl.