The cop who initiated Oscar Grant's detainment on the day that he was shot in the back at an Oakland Train station will testify today.
Tony Pirone, of the Bay Area Rapid Transit authority, resumes his account of the New Year's Day killing that outraged Oakland citizens and countless others who viewed Web footage of the incident in the weeks that followed.
Grant is captured on video lying on his stomach with his hands behind his back when Officer Johannes Mehserle abruptly pulls out his pistol, shoots and kills Grant. He's been charged with murder.
Mehserle's lawyer claims his client meant to pull out his Taser.
Pirone is the first witness expected to resume the preliminary hearing that began last week.
Angry demonstrations in the Black community have followed Grant's death at the hands of a White cop.
Mehserle resigned from his BART position without speaking to internal investigators about the shooting.