(CNN) -- Prosecutors in Ohio began presenting evidence to a grand jury on Monday in the August 5 death of Cincinnati man John Crawford III, shot and killed by police while carrying an air rifle in a Walmart store. Police contend that Crawford, 22, was "waving a rifle-type weapon at customers, including children," according to statement from Beavercreek Police Capt. Eric Grile. Michael Wright, who is representing Crawford's family, says Crawford picked up an unwrapped air rifle from a shelf inside the store in Beavercreek and was talking on the phone when he was confronted by police. Witness Ronald Ritchie called 911 to report "a gentleman walking around with a gun in the store," according to a recording of the call.
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John Crawford III was shot, killed by police inside a Walmart in Ohio in August
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Crawford was carrying an air rifle when he died
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A grand jury has convened to review evidence in Crawford's August 5 death,
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The death was ruled a homicide by the local medical examiner
"After all the evidence is presented, we would like to see an indictment handed down on the police officers," Crawford family attorney @placeholder told CNN.