GRAPEVINE (1080 KRLD) - Parents in the Grapevine-Colleyville school district are getting more information about last week's scare at Grapevine High School.
A letter to parents now says someone propped a door open to let an armed teenager, who is not a Grapevine student, inside the cafeteria.
Police say two 17-year-olds, Christopher Bishop and Tavian Price, were among four teenagers arrested.
Police say Price is the one seen posing for a picture with a loaded pistol.
The school immediately went on lock-down and police arrived quickly. They say no threats were ever heard.