Police kill man at Walmart, then interrogate girlfriend

The family of twenty-two year old John Crawford III is filing a wrongful death lawsuit against Walmart and police. Crawford was holding an air rifle he had picked up off a store shelf when police, who thought it was an active shooting situation, entered the store and shot him. The police officer was not indicted by a grand jury.

Adding to the family's outrage: new video shows police interrogating Crawford's girlfriend just after he was shot, accusing her of lying and threatening her with jail time.

CNN's Erin Burnett has more.