Pirone

John Burris, an Oakland civil rights attorney who filed a $50 million wrongful death and civil rights lawsuit against BART on March 2, 2009, on behalf of Grant's family against called Pirone's firing "terrific" and said, "It's about time."

The Berkeley Daily Planet, The East Bay's Independent Newspaper By Bay City News 2010

Then Pirone grabbed Oscar and hustled him to a wall.

The Cold-Blooded Murder of Oscar Grant: What Really Happened 2009

Pirone lunged at Michael, grabbed him by his dreadlocks, and slammed his head, face down, on the concrete, leaving a large cut on the bridge of his nose.

The Cold-Blooded Murder of Oscar Grant: What Really Happened 2009

But Pirone and Mehserle didn't stop, they escalated.

The Cold-Blooded Murder of Oscar Grant: What Really Happened 2009

Then, yelling and cursing, Pirone banged on the train window and pointed his taser at two young Black men-Oscar and his friend Michael-and ordered them off the train.

The Cold-Blooded Murder of Oscar Grant: What Really Happened 2009

This was after Pirone had done what he called "a hair-pull takedown," when he dragged Greer off the train and slammed him to the floor by his hair.

Critical moment in battle for justice for Oscar Grant 2009

UC Hastings Law School Professor, Peter Keane, adds that the video shows clear and convincing evidence that Pirone "commited a vicious physical assault unprovoked upon a citizen for absolutely no reason."

Neal Rodriguez: BART Cop Who Punched Oscar Grant Should Resign 2009

With Pirone still on Oscar, Mehserle wrenches his gun from its holster and shoots Oscar Grant at close range-in the back.

The Cold-Blooded Murder of Oscar Grant: What Really Happened 2009

Keane contends that the Pirone should be terminated and charged for civil rights violations and assault.

Neal Rodriguez: BART Cop Who Punched Oscar Grant Should Resign 2009

Another video clip, not shown on TV until weeks after the murder, shows Pirone suddenly stride by Michael, who was handcuffed and lying on the cement, across the platform toward Oscar, hitting him hard in the face, causing his head to snap back.

The Cold-Blooded Murder of Oscar Grant: What Really Happened 2009