Authorities have surveillance footage from a Boston club that shows former NFL star tight end Aaron Hernandez and two men killed in an unsolved shooting last year just hours before the double homicide.

Law enforcement sources tell that the footage shows Hernandez and the two shooting victims, 29-year-old Daniel Jorge Correia de Abreu and 28-year-old Safiro Teixeira Furtado.

The two victims were killed in the July 15, 2012 shooting that injured a third unidentified victim. Witnesses reported seeing gunfire coming from a gray SUV with Rhode Island license plates.

Prosecutors have not filed charges in the double murder, but a law enforcement official told in July that investigators believe Hernandez and the shooting victims were at the same Boston night club before the fatal altercation.

Hernandez's lawyers on Tuesday filed the request in federal court to delay proceedings in a Florida lawsuit until a murder charge against him in Massachusetts is resolved.

They say it would be legally unfair to Hernandez to permit the lawsuit to continue while he is defending himself in the shooting death of 27-year-old Odin Lloyd. Hernandez has pleaded not guilty to Lloyd's slaying and weapons charges.

In the Florida lawsuit, 30-year-old Alexander Bradley claims Hernandez shot him in the face after they argued at a strip club in February. Bradley seeks at least $100,000 in damages.

Hernandez was released by the New England Patriots when he was implicated in Lloyd's killing. He previously starred at the University of Florida.

The Associated Press contributed to this report.

Click here for more from