A 14-year-old boy taken into custody earlier this week was determined not to be the shooter but "remains a person of interest in the investigation," police said.
NOW: @GarlandPD identifies a 14yo juvenile suspect as shooter - adding it's not typical to identify a juvenile but "due to the nature of the offense and potential risk to the public, the court has authorized release of his information." @NBCDFW https://t.co/AkNqORrgoN