NewsChannel 9 has confirmed through law enforcement sources that Sam Parker, 52, has been arrested for the murder of his estranged wife, Theresa Parker.

The Georgia Bureau of Investigation arrested Parker at his home at about 10 o'clock this morning without incident.

The GBI informs us he has been moved to a jail outside of the Walker County area. This case has received tremendous publicity. Sam Parker was a 26-year law enforcement veteran, including rising to the rank of Sergeant at the LaFayette police department, before he was fired after his estranged wife disappearance.

Theresa Parker has been missing since March 21, 2007. The GBI says today her body has still not been found.

We just spoke with Theresa Parker's sister, Christina Hall. The news reached Hall about 30 minutes after the arrest. Hall said, "I was elated, I was happy. But on the other hand, I was sad. It hits pretty hard. I mean it makes it so real. He was a part of our family for 17 years."

Walker County Georgia Sheriff Steve Wilson will hold a news conference at 4:00 PM today. Of course, NewsChannel 9 will have much more on this story as details develop.