Willie Young, 21, and Randy Stewart, 18, were arrested Monday morning, according to the Harris County Sheriff's Office. Young is charged with deadly conduct while Stewart is charged with aggravated assault.
The victim killed at the scene has been identified as 17-year-old Queric Richardson. The name of the other victim, a 16-year-old girl who died at a hospital, has not been released.
Harris County Sheriff Adrian Garcia has said Saturday's shooting began when someone fired a pistol in the air in celebration. In the ensuing confusion, someone else began firing into the crowd, causing people to stream into the narrow street.
Katy school district spokesman Steve Stanford said Richardson was a student at Morton Ranch High School. Stanford said some students at the school were among the more than 100 who attended the party. He said school district police will increase patrols so that officers are more visible this week.
