Zachary Burkard admitted to shooting his South County High School classmates, Ersheen Elaiasher and Calvin Van Pelt, on April 25, during a fight over threats made on social media, the website said.
The jury in this trial was shown a video of Burkard using expletives in threats against one of the teens he killed, WUSA9 said.
Click here for the full story from WUSA9.
Click here to follow Daily Voice Fairfax and receive free news updates.