Minnesota police shooting isn't only death of 911 caller

Officers around the nation have mistakenly slain or wounded people in other cases, including a pregnant Seattle mother shot to death earlier this year after reporting a break-in and a Georgia man who in 2014 reported that his girlfriend had been stabbed and was fatally shot by the responding officer.

Matthew Barge, executive director of the Police Assessment Resource Center's New York City office, said additional training for officers on when to draw and fire their weapons is always a good idea.

"Police officers can make mistakes because they're human too," said Barge, who has been the court-appointed monitor overseeing a federal agreement governing police in Cleveland.

Damond, a 40-year-old yoga instructor and life coach, called 911 twice on the night of July 15 to report a possible sexual assault behind her home before she was shot by Officer Mohamed Noor.

Civil rights groups are calling for volunteers to be trained in the legalities of using personal cellphones to record video of police to ensure there is a record of what happens when officers interact with citizens.

The Multicultural Media, Telecom and Internet Council and 10 other civil rights organizations say private video can become a tool to help prosecute wrongdoing or clear police officers when they are in the right, MMTC President Kim Keenan said.