A former Oklahoma attorney and her boyfriend have been arrested for killing the boyfriend’s ex-girlfriend and her parents in 2019. The deaths of 65-year-old Jack Chandler, 69-year-old Evelyn Chandler, and their daughter, 43-year-old Tiffany Eichor, came just months after Keegan Harroz began defending Barry Rowland Titus II in a domestic violence case involving Eichor, who …