This photo posted in September to Alice Balcer's Facebook page shows Andrew Balcer, 17, and his mother Alice, following a running competition. Andrew has been charged with two counts of murder in connection with the deaths of Alice and her husband Antonio.

Antonio Balcer, who served in the Coast Guard, in an undated photo from his Facebook page. Balcer, 47, and his wife Alice Balcer, also 47, were found dead in their home in Winthrop last week and their son Andrew Balcer, 17, has been charged with their murders.

State Police Detective Abbe Chabot, right, confers Tuesday with Winthrop Police Officer Joshua Hammond in the driveway of the Balcer residence in Winthrop, where the bodies of Antonio and Alice Balcer, both 47, were found early Monday morning.

State Police Detective Sgt. Scott Bryant, left, confers November 1, 2016 with Detective Larry Rose while collecting evidence at the Balcer residence in Winthrop.