A Burlington man has reportedly admitted to killing a husband and wife in Webster Plantation last month.31-year-old Nathaneal Nightingale was in court Monday.Court papers state Nightingale shot Michael and Valerie Miller in the head during an attempted robbery.According to the documents Nightingale admitted to police he shot the couple, and provided details of the crime.He was arrested shortly after midnight Saturday at his family’s home in Burlington.The bodies of Michael and Valerie Miller were found in the kitchen of their home on the Tucker Ridge Road.Jeffrey Silverstein is Nightingale’s attorney, he says his client did know the victims. “He understands what the charges are,” Said Silverstein on Monday. “He’s very despondent over the situation. It appears as if he’s made some statements acknowledging some responsibility. To my knowledge this appears to be a horrible accident gone wrong and we intend that, over time, we will produce additional circumstances and hope to put this in to proper context.”Nightingale is being held at the Penobscot County Jail without bail.He’s due back in court January 22nd.