PIERRE, S.D. (AP) — A judge has ruled on what evidence can be presented during the upcoming trial of a Pierre teenager charged in adult court with killing another teen.

Judge John Brown has granted defense motions to suppress any past criminal history of Braiden McCahren, along with statements from juveniles who attended school with him. But he is allowing limited testimony from several prosecution witnesses, including a juvenile whom McCahren briefly stayed with at a juvenile services center in Rapid City.

The 18-year-old McCahren has pleaded not guilty to first-degree murder in the December 2012 shooting death of 16-year-old Dalton Williams. McCahren was 16 at the time of the shooting that happened in his home.

McCahren is scheduled to stand trial beginning Sept. 15 in Winner.

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