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A Davenport teen has pleaded not guilty to charges stemming from the shooting death of 15-year-old Ayana Culbreath.

Trevor D. Owens, 17, filed his written plea to first-degree murder, intimidation with a dangerous weapon and possession of a firearm by a felon or an adjudicated delinquent, through his appointed attorney, Assistant Public Defender Derek Jones, on Tuesday. 

Jones also filed a motion this week to withdraw from the case, saying that his continued representation would be a conflict of interest because the public defender's office has or is currently representing 14 prosecution witnesses identified in the trial information. 

On Wednesday, District Court Judge Mark Cleve granted Jones' motion and appointed Michael Motto Jr. to represent him.

Owens will be back in court Aug. 26 for a pretrial conference.

Police say Owens and co-defendant Kamario C. Hill, 14, also of Davenport, fired a handgun toward a group of people during a gathering in the backyard of 4233 Warren St. on June 26.

Culbreath was taken to Genesis Medical Center-East Rusholme Street, Davenport, where she was pronounced dead. An autopsy determined that she died from a gunshot wound to the chest, according to police.

Witnesses at the gathering identified Hill and Owens as the shooters, police said.

Hill also is charged with first-degree murder, intimidation and possession of a firearm by a felon of adjudicated delinquent. He will be arraigned on the charges Aug. 18.

A Scott County juvenile court judge has ruled that he will be tried as a youthful offender in adult court.