An escalation of middle school drama led to the mass shooting on 6th Street last Saturday, which injured 13 and killed one man, an arrest affidavit obtained by KVUE shows.

The suspects, an unidentified 16-year-old and 17-year-old Jeremiah Roshaun Leeland James Tabb, are now in custody.

According to the TV station, the two knew each other from middle school and saw each other outside a bar at the 400 block of East Sixth Street. The 16 year old said Tabb walked by with "his crew" and approached him, asking "What y'all wanna do? Y'all wanna fight?"

One of the teens with the 16 year old responded, "It's whatever," when Tabb allegedly took a gun out from his waistband and began to fire shots. A member of the 16-year-old's group told police their group began to run away, hearing shots fired behind them.

The 16 year old also reported that Tabb had shot him in the leg previously in Killeen, Texas. The affidavit confirmed that there was a Killeen police report of the shooting.

A witness told police they saw one of the teens take out a gun in response to Tabb showing his weapon. The 16 year old said he shot back for their own protection. Investigators found eight shell casings from bullets in front of a bar that night.

Tabb is being charged with aggravated assault with a deadly weapon as an adult, as the incident is still being investigated.