Charleston, SC (WLTX) - Testimony from prosecution witnesses picked back up Monday morning in the trial of former North Charleston Police officer Michael Slager.

Slager is on trial, charged with murder in the death of Walter Scott, who he shot in the back following a traffic stop on April 4, 2015.

Of the four witnesses jurors heard from, three were North Charleston Police officers at the time of the incident and were the first on the scene after the shooting took place.

The final officer to take the stand was Sgt. James Gann who said by the looks of the cell phone video of the incident the situation was deescalating when Scott ran away.

And he said that Slager, by their department's practice, should have deescalated his actions as well, but when cross examined by the defense Gann was asked whether or not Slager knew if Scott was ever armed.

"And he didn't know whether or not Mr. Scott, we all sit back 18 months later and call him an unarmed man, but there was no way of knowing that Mr. Scott was unarmed at that point," lead defense attorney Andy Savage said.

"That is correct sir," Gann said.

The jury also heard testimony from Brian Chiles.

Chiles is with Taser International, the company that makes the taser Slager used that day, which has been a key component in the argument for both sides of this trial.

Testimony adjourned at about 5 p.m. and is expected to pick back up Tuesday at 9 a.m..

Last week six white men, five white women and one black man were selected as jurors for the trial.

They have heard testimony from 11 prosecution witnesses including, Scott's son, Scott's mother, and the man who recorded video of the incident on his cell phone, Fiedin Santana.

For the latest, minute by minute updates on the trial be sure to follow News 19's Chuck Ringwalt on Twitter at @ChuckRingwalt.

Previous Coverage:

Santana Says He Never Saw Walter Scott Come After Michael Slager

Walter Scott's Mother Says She Heard Him Cry Out in Pain

Jury Selected in Slager Trial

Slager Lawyers Asks Judge to Exclude Video

What We Know About The Michael Slager Trial

5 Things to Know About the Michael Slager Trial