Three and a half days into his murder trial, Isaiah Sweet changed his plea.
Sweet originally pleaded not guilty to the shooting deaths of his grandparents, Richard and Janet Sweet in their Manchester home.
But Monday, he agreed to plead guilty to both counts of first degree murder.
In exchange, the 18-year old asked that the sentences run concurrently.
The judge accepted the plea agreement after telling Isaiah he’d be in jail for a very long time before being eligible for parole.
The plea comes after the defense moved for a mistrial Friday after a DCI agent testified he found evidence of child pornography on Sweet’s computer.
Both the defense and prosecution agreed prior to the trial to omit that fact.
The judge took that motion under consideration Monday morning and denied the defense’s request.
The plea deal ends the trial before the defense called a witness.
Sentencing is set for December 18th.