A 94-minute police video recording, released to the Guardian by the office of Mike DeWine, the Ohio attorney general, in response to a public records request, shows Thomas, 26, being interviewed by Curd after she was driven from Walmart to the Beavercreek police department. Curd later told investigators he had not yet been told Crawford only had a BB gun that had been on sale at the store.

Curd promptly asked Thomas whether she and Crawford had criminal records. Already tearful and breathless, Thomas explained that she may have had some traffic offences and had been arrested for petty theft as a juvenile.

The detective then became increasingly aggressive and banged on the table between them with his hand. “Tell me where he got the gun from,” Curd repeated. Thomas insisted Crawford had been carrying only a white plastic grocery bag when they arrived at Walmart to buy the ingredients to make s’mores at a family cook-out.

After the case was handed to a special prosecutor, a grand jury decided in September that Williams and another officer involved should not face criminal charges. Williams was in 2010 responsible for the only other fatal police shooting in Beavercreek’s recent history.