Douglas Alexander Herrera-Hernandez, 20, is charged with capital murder in Fort Bend and Harris counties.
According to a Houston Police Department spokesperson, Herrera-Hernandez was arrested early Saturday in Arlington, Virginia.
Herrera-Hernandez, also known as "Terror," murdered a 16-year-old at the Buffalo Run Park in Missouri City on June 13, investigators allege. They believe the 16-year-old had witnessed several gang-related murders and was working with authorities.
Nearly a month later, Houston police identified Herrera-Hernandez in the fatal shooting of 26-year-old Kevin Alvarez. According to witnesses, Herrera-Hernandez and Alvarez had been arguing before the shooting.
ORIGINAL REPORT: MS-13 gang member charged, wanted in connection to murders across area
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