One of two men accused of killing two people outside a northeast Austin nightclub has been arrested, while authorities believe the second suspect could be fleeing to Memphis with his mother.

Kevin Curtis Parrish, 20, was booked into the Travis County Jail at 2:19 p.m. Saturday on a charge of capital murder of multiple persons, according to the Travis County Sheriff’s Office. The agency did not release details about where or how Parrish was taken into custody.

James Mackeise Shearrion, 19, remains at large, according to the sheriff’s office. Investigators have also obtained warrants charging his mother, 38-year-old Precious Josslyn Shearrion, with hindering apprehension and tampering with evidence in connection with the case.

The two could be traveling toward Memphis in a red or maroon 2016 GMC Terrain with Texas license plate WVD9593, the sheriff’s office said. Anyone who sees them or knows where they are should call 911 rather than approach them.

Parrish and James Shearrion are accused in the July 5 shooting deaths of Layla Williamson, 19, and VT Wood-Davion Olden Hornsby, 23, both of Austin. Warrants were issued Friday charging both men with capital murder. Under Texas law, intentionally killing more than one person during the same criminal transaction can be prosecuted as capital murder.

Deputies were called at 3:54 a.m. to the 9700 block of Reservoir Court after receiving several reports of gunfire outside Bare Cabaret, authorities said. Nearly 400 people were inside the nightclub or gathered in its parking lot when deputies arrived, creating a chaotic scene as first responders treated the wounded and investigators began separating witnesses from people believed to be involved.

Hornsby was pronounced dead at the scene at 4:22 a.m. Williamson was taken to a hospital, where she died shortly after 5 a.m.

Investigators have said the people involved knew one another and that they do not believe the shooting represents an ongoing danger to the general public. Authorities have not publicly described what led to the confrontation or identified who they believe fired the shots.

Officials added that additional arrest warrants could still be issued as the investigation continues.

Anyone with other information about the shooting can contact the Travis County Sheriff’s Office tip line at 512-854-1444.