Charles Alvarez, 34, was fatally shot on August 29, 2016, at Buffalo Run Park in Missouri City. The same incident also claimed the life of a 16-year-old male who had been a witness to several gang-related killings. Investigators with Missouri City and Houston police identified 20-year-old Douglas Alexander Herrera-Hernandez, also known by the alias Terror, as a suspect in those murders and charged him with capital murder in Fort Bend County’s 240th State District Court.

Authorities say Herrera-Hernandez was later tied to another fatal shooting on July 9, 2017, in Houston, where 26-year-old Kevin Alvarez was shot multiple times after an argument; Herrera-Hernandez was charged in Harris County’s 262nd State District Court. He was taken into custody in Arlington, Virginia, on July 29, 2017. Officials described the killings as gang-related, targeting people connected to or aware of gang activity. Some key questions remain about motive and what links the victims beyond those descriptions; anyone with information about Charles Alvarez or the events at Buffalo Run Park is asked to come forward.