The Horrific Mystery of the Therapist Who Sedated and Shot Her Own Twins

SEATTLE—Mike Mitchell was sitting in his Bellingham, Washington, bedroom with close friend and housemate Michele Boudreau Deegan on a Thursday last month when they broached the subject of suicide. It had become an occasional discussion topic for the pair, as Boudreau Deegan, a 55-year-old mental health therapist who owned the house the two of them shared, suffered from intense bouts of depression. On that night, Mitchell said, Boudreau Deegan…