Trial may be postponed this afternoon for a Lawrence man facing gun charges in connection with the unsolved killing of a local hip-hop artist.Jury selection was set to begin this afternoon for Major C. Edwards, Jr., 27, on charges that he illegally possessed guns and ammunition despite a felony conviction for dealing cocaine. But Edwards’ attorney filed a motion Monday saying that he hasn’t yet been able to review all the government’s evidence with his client- in part, he wrote, because prosecutors in the U.S. Attorney’s office don’t allow defendants to make their own copy of police reports.Defense attorney Phillip R. Gibson also wrote that Edwards has not been able to take his medication prescribed for bipolar disorder since he was arrested last fall. He asked that Edwards be “appropriately medicated” while in custody.”Both Defendant and counsel have believed that the Defendant was ‘coping ‘ well without his medication, but as the trial date approaches and Defendant’s level of stress and anxiety increases, his behavior and thought processes have become demonstrably more erratic,” Gibson wrote.A decision will be made this afternoon in court on whether the trial will be postponed.Edwards, who is barred from having a gun because of a felony conviction for selling cocaine, was arrested on gun charges as Douglas County sheriff’s deputies and Lawrence police investigated the killing of Anthony J. Vital, who was found shot to death Oct. 15 in a field west of Lawrence along U.S. Highway 40. Deputies have said Edwards is a person of interest in the case, but he is not charged with the shooting.Read more about the case here.-contributed by Eric Weslander.