Shannon Aspen Duke, 40, and her 18-year-old daughter Chloe Duke were found shot to death on January 5, 2016, inside their south Anchorage home on the 3600 block of Spinnaker Drive. A male caller contacted police shortly before 7 p.m. saying he had returned home to find his wife and daughter dead. Investigators described the killings as cold-blooded, execution-style attacks.

Police say a 15-year-old boy, the son of Shannon Duke, was taken into custody that day in connection with the murders. Court and investigator testimony outlined an account in which the teen allegedly retrieved a firearm from his room, shot Shannon in the back of the head while she was napping with a 3-year-old nearby, and then shot Chloe in the back of the head as she came to investigate on a stairway. He then allegedly drove off with his younger sister in a family truck toward the family cabin; officers later located a victim’s vehicle and the suspect in the Big Lake area.

Prosecutors sought adult charges, but the Alaska Supreme Court ruled the suspect would remain in the juvenile system. Because juvenile custody could not extend past the suspect’s 20th birthday, no further detention or supervised release was available after he aged out, and a final adjudication hearing confirmed no additional jail time or conditions would be imposed. Does anyone have information about the family or those last hours at the Spinnaker Drive home?