PITTSBURGH — Video that showed a white police officer shooting to death an unarmed black teenager is among the evidence presented during the first day of the former cop’s criminal homicide trial.

More testimony is expected Wednesday when the trial of former East Pittsburgh Police Officer Michael Rosfeld resumes in a Pittsburgh courtroom.

The 30-year-old Rosfeld is accused in the June death of 17-year-old high school student Antwon Rose II.

Rosfeld fired three bullets into Rose after pulling over an unlicensed taxicab suspected to have been used in a drive-by shooting minutes earlier.

Rose was a front-seat passenger in the cab and was shot as he fled.

A neighbor who recorded the confrontation said the tone of Rosfeld’s voice is what got her attention.