Travoris Hines, 17, was arrested Friday evening according to police. He is scheduled to make an appearance before a magistrate judge later Saturday. If convicted, Hines could face life in prison.

Warren was shot and killed outside the west Houston high school Friday morning. Police didn’t speculate on a motive, but said Hines and the shooter might have interacted or argued before the killing.

The new documents do little to shed light on a motive for the shooting. The two-paragraph complaint shows that Hines is accused of knowingly shooting Warren with a firearm. Prosecutors have sought to have Hines ordered to stay away from Warren’s family, the high school and from other witnesses.

Hines has also been charged with unlawful carrying of a handgun, a misdemeanor. 

Hines has no other criminal record as an adult in Harris County.

Court records list his home address in the Fondren Gardens neighborhood, about 3 miles from the high school.

Under a new law that went into effect this year, a magistrate cannot set a bond for a person accused of murder, meaning Hines will remain in custody at least until he appears before a district court judge. His first hearing is scheduled for Monday morning in front of District Judge Peyton Peebles. Prosecutors have already indicated they will seek to hold Hines without bail until a trial.

Hines didn’t have a listed defense attorney as of Saturday afternoon.

Meanwhile, a memorial for Warren grew larger Saturday at the end of Dryad Drive near the school. 

Blue and white balloons, matching Westbury High School’s colors, were left at the memorial alongside basketballs marked with No. 4 and No. 2, which he wore in school sports. Candles arranged in the shape of a cross lit the pavement, surrounded by white roses and other colorful flowers. Photos of Warren, stuffed animals and other keepsakes were also placed there in his memory.