One victim was possibly exchanging text messages with one of the gunmen, leading up to the shooting.
Officials are collaborating with security personnel at the Alamo Draft House to collect potential suspect details.
The 20-year-old man also succumbed to his injuries.
Two firearms were recovered by authorities at the scene.
Detectives are actively pursuing these recordings and encourage witnesses to come forward.
No suspects have been identified, and there has been no information immediately released regarding any arrests.
Police ask public to please stay out of the area.
Police officers are currently at the scene conducting an investigation.
Autopsies to ascertain the cause and manner of their deaths will be conducted by the Bexar County Medical Examiner in the upcoming weeks.
Records from the Travis County Jail indicate that a person with the same name was booked at 1:30 a.m. on Wednesday and charged with capital murder...