Sacramento officer used excessive force to take down jaywalker

A Sacramento woman has captured the frightening moment a white cop grabbed her black friend by the throat, threw him to the ground and began punching him - for jaywalking.
The video was recorded Monday in the Del Paso Heights neighborhood, when Nandi Cain Jr was filmed by his friend Naomi Montaie being attacked by the cop while walking home from work.
'I never witnessed anything like that. He just kept hitting him, and kept hitting him, and I was like, "Oh my God...why you hitting him like that? Why you hitting him like that?"' she told Fox 40.
Things are already looking heated when the video begins, as Cain drops his jacket and stands defiantly in the road in front of the cop.
Montaie, who is in the passenger seat of a car in the road, tells her 'nephew' - really just a close friend, she later said - to calm down.
But it's the cop who loses his cool first. Cain remains motionless as the officer strides forward, grabs him with both hands around the throat and forces him back.
The cop pushes Cain to the ground and is seen sitting on his chest and repeatedly punching him in the face as Montaie's car gets closer.
The officer continues punching Cain as she gets out of the vehicle, then twists the man's arm behind his back and cuffs him as first one, then five more officers appear on the scene.
'Hey, why you beating him like that?' shouts Montaie, horrified. 'Oh Jesus! I seen this, Lord. He's breaking his arm!'
She appears to be on the verge of tears at one point.
Montaie said police told her afterwards that Cain had been stopped for jaywalking.
Cain's girlfriend, Antoinette Stewart, told Fox 40 that Cain, the co-manager of a TV store, was a 'goofy and spirited' man, and had never been to jail.
'I just want some answers,' she said. 'What happened?'
Sacramento police told Fox 40 only that an officer had tried to stop a man for a violation at Cypress and Grand at around 5pm. It would not say what the violation was.
They also wouldn't confirm Cain's identity. The department is reportedly reviewing the video.
The Sacramento Police Department has been contacted by DailyMail.com for comment.
The local police department's jaywalking policies - which see fines levied for those caught in the act - have been criticized as a money-making scheme since at least 2009, according to the Sacramento Press.