Mr Grayson tells his partner: “What else do we do? I’m not taking hot boiling water to the f—ing face.”
Paramedics later arrived at the house and took Ms Massey to a nearby hospital but by the time she arrived she was dead.
Mr Grayson was arrested and charged on July 17, and pleaded not guilty to all charges the next day. He was remanded in custody and will next appear in court on Aug 26. He has been fired from the police force.
Joe Biden used his first public statement since quitting the US presidential race to condemn the shooting and called on politicians to pass the George Floyd Justice in Policing Act.
“When we call for help, all of us as Americans – regardless of who we are or where we live – should be able to do so without fearing for our lives,” the US president said.
“Sonya’s death at the hands of a responding officer reminds us that all too often black Americans face fears for their safety in ways many of the rest of us do not.”