On July 26, 2013, 64-year-old Patricio Simono was shot and killed at his Hialeah, Florida apartment during a violent incident that also claimed the lives of his wife, Merly Niebles, and her 17-year-old daughter, Priscilla Perez. The assailant, identified as 42-year-old neighbor Pedro Vargas, reportedly set his own apartment on fire before entering Simono’s unit and opening fire.

Vargas had a history of erratic behavior and had sent harassing emails to former coworkers; he had been laid off and had complained of being followed and harassed. On the day of the killings he allegedly had an altercation with his former employer’s attorney. After the shootings, Vargas took two hostages and engaged police in an eight-hour standoff that ended when a SWAT team entered the apartment, killed Vargas, and rescued the hostages. Investigators concluded Vargas acted alone.

If anyone knew Patricio Simono or has information about the events at that apartment complex on July 26, 2013, please share what you know.