Matt Pumphrey, 18, of Flower Mound was arrested Tuesday on suspicion of making a bomb threat that caused the evacuation of Flower Mound Town Hall and two nearby buildings.
Officials said the police department received a report from a resident at 1:09 p.m. that a bomb threat targeting town hall was posted on Pumphrey’s Twitter’s account.
Town Hall, the Shirley Voirin Social Senior Center, and the Cross Timbers YMCA were evacuated a short time later and employees waited in the soccer fields behind the complex while police searched the building.
Authorities closed the eastbound lanes of FM 1171 at Morriss Road during the investigation.
Nothing suspicious was found, and police allowed everyone to return to the buildings just before 2:30 p.m.
Police determined the threat was a hoax and took Pumphrey into custody at 2:18 p.m. at Marcus High School, where he is a student.
He was charged with making a terroristic threat, a Class A misdemeanor. The charges were later upgraded to making a terroristic threat that impairs government or public service, a third-degree felony punishable by up to 10 years in prison and a fine of $10,000.
The investigation into the motive of the threat is ongoing.