Overview

• Alianna Ujueta, 17, was shot in the head as people left the gathering in southwest Bexar County, and her death was ruled a homicide.
• Detectives believe the shooter fled in a dark-colored pickup and have not announced any arrests.
• Authorities recovered spent shell casings, clothing and jewelry and returned to search the site for additional evidence.
• An unidentified witness reported that a black pickup ran over Ujueta after the shooting, a detail investigators are working to verify.
• The sheriff’s office is seeking cellphone video from attendees and urging parental vigilance as similar parties have recently turned violent.