Karen Read, tried for the death of her boyfriend and Boston cop John O'Keefe, claimed two cops Michael Proctor and Sean Goode exchanged racist, obscene texts.

Karen Read has filed a lawsuit against Massachusetts State Police and the Canton Police Department nearly a year after she was acquitted of killing her boyfriend.

A look at the timeline of events in Karen Read's high-profile Massachusetts murder trial and retrial. Read was acquitted of killing her boyfriend, Boston police officer John…