UPDATE 2:20 P.M.
The affidavit for Rondarius Spicer, a suspect arrested for Sunday's shooting on Sixth and Trinity, has been obtained by FOX 7.
According to the report, police were led to Spicer and Brunson after a witness gave a description of the suspected shooter's clothing.
The report states about 10 minutes after the shooting, a witness told police they saw Spicer on 7th and Trinity showing multiple people a 9mm handgun resting in his waistband. Spicer was arrested after he attempted to run from police.
During the course of the arrest, a loaded handgun fell out of Spicer's waistband and police noticed the gun was still "hot to the touch" and missing four of the 12 rounds.
Spicer was not wearing the clothes described to police by a witness. During the arrest of Spicer police located another male, later identified as Brunson, matching the description running from the scene.
The report states, Brunson ran and attempted to hide in a SXSW line that went into a business. Police located Brunson, arrested him, and found a 9mm Beretta in his jacket pocket.
According to the report, a second witness told police that he and Brunson had a heated verbal exchange prior to the shooting. The witness said he saw a suspect reach for a gun and turned to run away. While running, he heard multiple gunshots fired behind him.
Police said neither Brunson or Spicer had open or concealed carry licenses
Spicer has been charged with Deadly Conduct, Discharge of a Firearm, a 3rd degree felony. His bail was set at $15,000.
UPDATE: 3:45 P.M.
The Austin Police Department have arrested two suspect in connection to the shooting on Sixth and Trinity early Sunday morning.
Justin Brunson, 20, and Rondarius Spicer, 22 were arrested on Sunday.
Spicer has been charged with Unlicensed Carry of a Weapon and Deadly Conduct. Brunson was charged with Unlicensed Carry of a weapon.
Austin Police say someone fired a handgun into the air near the intersection of Sixth and Trinity. It happened shortly after 1 a.m. Sunday.
Officers were close by patrolling the area for the last night of South by Southwest and responded quickly.
While Sixth Street was crowded police say thankfully no one was injured. Officers captured the suspect and the gun was recovered. The suspect's name and what he is charged with have not been released yet.
Officers say there may have been some type of altercation. Detectives are looking into that as part of the investigation.
That stretch of Sixth was closed to drivers.