Attorneys for two Navajo men convicted of killing a pair of tribal police officers at a desert drinking party filed a joint motion Friday in U.S. District Court for a new trial.

After deliberating for more than 46 hours, the 12-member jury on Aug. 2 found Thomas Cly, 22, and Vinton Bedoni, 31, guilty of first-degree murder in the deaths of Navajo Tribal Police Officers Andy Begay and Roy Lee Stanley.The victims' remains were found Dec. 5 in a remote canyon on the Navajo Reservation in southeastern Utah. Prosecutors contended they had tried to break up a bonfire and party on Dec. 4 and had been beaten, shot and burned to death in a police panel truck.

The jury deadlocked in the case of a third defendant, Ben Atene Jr. Judge J. Thomas Greene declared a mistrial, but prosecutors said they would not dismiss charges against him.

Robert Van Sciver, who represents Bedoni, said the motion for a new trial was filed Friday to meet a 10-day statutory deadline.

Van Sciver said he and Cly's attorney, Ed Brass, intend to supplement the motion later with further information that will address certain "trial irregularities we believe to have existed."

Midway through the trial, charges against a fourth defendant, Marques Atene, were dismissed.

Bedoni and Cly are to be sentenced Oct. 3. They face a maximum penalty of life in prison.