"Much of the case against Downs rested on the testimony of surviving daughter Christie, who, once she recovered her ability to speak, described how her mother shot all three children while parked at the side of the road and then shot herself in the arm. "
Furthermore. She managed to get pregnant while in prison to postpone the trial. Then she managed to break out of prison and was on the run for 10 days.
Not the behaviour of an innocent person IMO.