A former North Charleston, S.C., police officer was indicted on murder charges in the killing of 50-year-old Walter Scott.

According to Scarlett Wilson, the Ninth Circuit Solicitor, the indictment against Michael Slager was handed down by a grand jury first thing this morning.

The (Charleston) Post and Courier reports:

“‘The prosecution work has just begun,’ Wilson said during a news conference. The solicitor said she just received last part of the State Law Enforcement Division file this morning.

“Wilson said she thinks a jury in Charleston County can be impartial in making decision in the case.

“Slager’s attorney, Andy Savage, said the indictment is ‘just another step in the process.'”

Reports showed that Slager told investigators that he believed he had followed protocol when he shot Scott. However the video showed that Slager fired his weapon while Scott was running away and without a verbal warning.

A trial date has not yet been set.