Jayona Brown, now 18, is facing several charges, including vehicular homicide, in the death of Metropolitan Nashville Police Officer John Anderson, who was killed on July 4.

During a hearing Thursday, it was revealed that Brown tested positive for THC three hours after the crash, Fox 17 reported. There were no other impairments listed in the blood test.

Brown’s attorney, Michie Gibson, told Fox News in July that the teen snuck out of her mom’s home early on July 4 with her aunt’s 2016 Ford Fusion.

Metro Nashville Police said an officer tried to pull Brown over but she took off and crashed into Officer Anderson’s patrol vehicle after running a flashing red traffic light, killing him.

Anderson, a four-year veteran of the Metropolitan Nashville Police Department (MNPD) and a father of an 18-month-old son, was heading to a nearby highway to assist a fellow officer with a pedestrian who was reported to have been in a traffic lane waving his arms, police said.