BARNSTABLE — Neither of the two men accused of killing 19-year-old David Anthony Colon in Hyannis in June 2015 appears likely to go on trial anytime soon.

The attorney for Kyle Walker, 27, of South Yarmouth, appeared Thursday in Barnstable Superior Court for a pretrial hearing. He waived Walker's appearance.

Judge Robert Rufo said it seemed likely that the other man charged in the case, Keven Seme, 22, of Brockton, would have his April trial date moved further out.

Prosecutors want to try Seme's case before Walker's.

The judge scheduled a pretrial hearing for Walker for Dec. 11 after Cape and Islands Assistant District Attorney Sharon Thibeault said Walker and Seme could not be in the courthouse at the same time. Seme has a pretrial hearing Dec. 10.

Walker's attorney, Robert Galibois, said he had one motion to suppress that still had to be litigated.

Both men have been indicted on a murder charge, and Seme also has been charged with carrying a firearm without a license The two are accused of shooting Colon in the head on Washington Avenue Extension during an apparent drug deal.