DALLAS (AP) – A 13-year-old suburban Dallas boy charged with killing a Garland couple has reached a plea agreement with prosecutors.

The Dallas Morning News reports Friday that details of the plea bargain were not released but police say the teen will serve at least 10 years behind bars because the charge is capital murder.

The boy was facing a maximum 40-year sentence.

He and his then 12-year-old girlfriend were both accused of capital murder in the August shootings that led to the deaths of 46-year-old Darlene Nevil and her 48-year-old husband, Alan Nevil.

Dallas County chief public defender Lynn Richardson, who is representing the boy, says he can’t comment on matters pertaining to juvenile offenders.

The girl, who is now 13, is set to go on trial in March.

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