Karen Read told ABC News she is on a "crusade" to expose corruption, bigotry and misogyny in two Massachusetts police departments that she said framed her for murder.

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…