Anthony Acevedo, 20, and Jose AlarconSanchez, 18, both of Grand Prairie, were seen in multiple social media videos on New Years firing weapons from the Margaret McDermott Bridge just west of Downtown Dallas. Detectives with the Central Patrol Division and the Special Investigations Unit launched an aggressive and exhaustive investigation, with assistance from the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) and the U.S. Attorney’s Office. Investigators recovered more than 100 shell