DALLAS — Federal prosecutors and a half-dozen law enforcement agencies have launched "Operation Deep Cover," a joint crackdown in Dallas' Deep Ellum entertainment district after three separate shootings early Sunday left four people dead and 15 others wounded.
U.S. Attorney Ryan Raybould of the Northern District of Texas announced the operation on Monday at a news conference in Deep Ellum, joined by Dallas Police Chief Daniel Comeaux and representatives of the FBI, the Bureau of Alcohol, Tobacco, Firearms and Explosives, the Drug Enforcement Administration, the U.S. Marshals Service, Homeland Security Investigations and the Texas Department of Public Safety.
The shootings happened over about an hour and 15 minutes early on Sunday, November 1, in the city's nightlife district. Dallas police said investigators were still trying to determine whether the three shootings were related, and Chief Comeaux said detectives had no information tying the scenes together but were still examining the question.
As an example of the conduct the operation is designed to target, Raybould announced a federal criminal complaint against Treyveion Dionte Demby, 28, charged with being a felon in possession of a firearm. According to an affidavit, at about 1 a.m. on November 1, a Dallas officer responding to reports of gunfire in the 2600 block of Main Street saw Demby, dressed in black and wearing a black ski mask, pointing a handgun toward Main Street.
The firearm was identified as a Taurus PT111 G2 9mm pistol loaded with one round in the chamber and a magazine containing 16 rounds. Demby was previously convicted in Dallas County of four counts of aggravated robbery, was sentenced in February 2020 to 10 years in prison, and was released on parole in September 2025. He has not been charged in connection with the three shootings.
Operation Deep Cover will devote more federal, state and local resources to the district, aggressively pursue drug and firearm offenses, bring cases federally wherever the facts and law allow, and review Deep Ellum cases dating to 2024 for possible federal charges. Federal charges often carry longer sentences and no possibility of early parole, Raybould noted. A criminal complaint is merely an accusation, and defendants are presumed innocent until proven guilty in a court of law.
