On November 28, 2009, 47-year-old Michael Leroy Miller Sr. and his wife Valerie Miller, also 47, were found shot to death in the kitchen of their mobile home in Webster Plantation, Maine. A visiting friend discovered both victims; Michael Miller had a bullet wound to the back of his neck and Valerie was found beside him with her head on his chest.

Investigators initially circulated a composite sketch of a woman reportedly seen at the residence, based on information from family acquaintance Nathaneal K. Nightingale. Detectives later concluded the woman did not exist and focused on Nightingale, who was arrested in Burlington, Maine, and charged with two counts of murder. He confessed, saying he had gone to pawn a handgun belonging to his stepfather, that Michael’s shooting was accidental, and that he shot Valerie during a robbery that went wrong.

In 2011 Nightingale was convicted of manslaughter in Michael Miller’s death and murder in Valerie Miller’s death and received a 40-year sentence for Valerie’s murder, with a concurrent 15-year term for Michael’s manslaughter. Did anyone who knew the Millers notice anyone who had been in their life or showed an unusual interest in their belongings around late 2009?