Photo: Baltimore County Police

Karen Norton

The case was brought before a grand jury on May 1, CBS Baltimore reports.

After listening to the new evidence, the grand jury indicted Norton on charges of first-degree murder and assault with intent to maim, online court records show.

Norton was arrested on a warrant on May 1, after the grand jury hearing.

John Joseph Norton, 57, of Maryland.Baltimore County Police

John Joseph Norton

He remains held without bond at the Baltimore County Detention Center pending trial, online court records show.

Norton told authorities he discovered his wife’s body the day she was killed after returning to their Catonsville home and finding her keys in the front door, theSunreported at the time.

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In the ensuing years, authorities began to suspect the scene was staged and that Norton was the alleged killer, theSun reports.

“The detective currently investigating the case thoroughly re-examined crime scene photos to lay out exactly why earlier investigators began to believe the crime scene was staged,” Peach told theSun. “Things that seemed insignificant to witnesses when initially interviewed became significant details to the detective currently on the case.”

The Baltimore County Police Department did not return PEOPLE’s calls and emails for comment.

Court records do not show a lawyer listed for Norton. He has not yet entered a plea to the charges against him.

source: people.com