The Latest on the trial of a former South Carolina police officer charged with murder in the shooting of an unarmed black motorist (all times local):

9:55 a.m.

A defense witness in the Michael Slager murder trial has testified that yellow paint found on the former South Carolina patrolman's Taser matches paint from an asphalt path through a vacant lot where a black motorist was shot.

Slager faces 30 years to life in prison if convicted in the April 2015 shooting death of Walter Scott as Scott fled a traffic stop.

William Schneck, a trace evidence expert, also testified on Tuesday that yellow paint was found on a cellphone that Scott was carrying. He said that also matched paint from the path which has been referred to in the trial as the yellow brick road.

The defense has been laying out a case that the two men wrestled for control of the Taser and that Slager was stunned by his own weapon in the seconds before the shooting.

Scott was shot five times in the back in a shooting captured on cellphone video that stunned the nation.

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4:15 a.m.

Defense attorneys plan to call the officer who was Michael Slager's immediate supervisor on the day last year when the South Carolina patrolman shot and killed an unarmed black motorist.

Slager, who is white and was fired from the North Charleston Police Department, faces 30 years to life if convicted of murder in the death of Walter Scott, who was shot while running from a traffic stop.

The defense continues its case Tuesday and plans to call North Charleston police Sgt. Ronald Webb. In pretrial hearings, defense attorney Andy Savage has raised the issue that North Charleston officers had monthly quotas to stop a certain amount of pedestrians and motorists.

The Scott shooting was captured on cellphone video that shocked the nation.