Megan Hargan denies she killed her mother and sister inside their McLean home in 2017.
But after a 16-month investigation, police offered a stunning turnabout: what initially appeared to be a murder-suicide was allegedly a double killing. They claimed the scene had been carefully staged by the real perpetrator.
The boyfriend urged Helen to get Megan’s daughter out of the home and call police, but Helen kept stammering, “I can’t believe this,” prosecutor’s wrote. In the days that followed, police announced the killings were a murder-suicide. Major O’Carroll indicated police knew early on the scene was allegedly staged, but did not publicly change their account of what happened because they didn’t want to tip off Megan Hargan.
After her arrest, Megan Hargan allegedly told detectives she wanted to take blame for the killings, according to a prosecution filing.