A defense attorney says a former soldier accused in the deaths of two enlisted men from Fort Carson has accepted a plea agreement and will testify against his co-defendants.

Bruce Bastien Jr. is expected to enter a plea on Monday. The charge he will face has not been disclosed.

His attorney, Richard Bednarski, notified a judge of the plea agreement on Thursday.

Bastien is currently charged with first-degree murder in the deaths of Pfc. Robert James in August and Spc. Kevin Shields in December.

Louis Edward Bressler is also charged with first-degree murder in both deaths. Kenneth Lee Eastridge faces charges of first-degree murder and accessory in Shields' death. He is not accused in James' death.

Bressler and Eastridge have pleaded not guilty.