Karen Read has officially filed a lawsuit against the Massachusetts State Police and the Canton Police Department citing systemic negligence.The complaint follows her acquittal for the death of John O'Keefe and details a decade of racist and sexist misconduct by investigators.Former officer Michael Proctor was fired last March while Sergeant Sean Goode resigned recently amid an internal affairs probe.Legal counsel for the plaintiff argues that institutional bigotry and a failure of oversight directly compromised the criminal investigation.