More Details On This UGA Professor..

(CNN) -- A wanted University of Georgia professor killed himself with a single gunshot to the head after he dug his own grave and covered it with brush, police said Tuesday.

The manhunt for George Zinkhan ended Saturday when cadaver dogs discovered his body in Georgia's Clarke County, about a mile from where his red Jeep Liberty was found more than a week earlier, police said.

"Zinkhan's body was found in a small dugout area in the ground, covered with leaves and debris, and it was apparent that he took significant steps to try to conceal his body from being located," a statement from Athens police said.

Law enforcement officials determined that Zinkhan, 57, committed suicide after killing his wife, Marie Bruce, 47, Thomas Tanner, 40, and Ben Teague, 63, outside a theater in Athens on April 25.

All three victims were associated with the Town and Gown Players theater group, which was holding a reunion picnic at the time of the shootings.

Police did not give any motive for the slayings but said in a statement that Zinkhan and his wife were having marital problems. Zinkhan targeted Tanner and shot him first, the statement added.

Authorities said Zinkhan arrived while the Town and Gown event was under way and got into a disagreement with Bruce. Police believe he left, went to his car -- where the couple's children apparently were waiting -- and returned with two handguns.

In addition to the three deaths, two other people were wounded, police said.

After the shootings, Zinkhan, a marketing professor at the University of Georgia's Terry College of Business, drove to his hometown, Bogart, Georgia, and left his children -- ages 8 and 10 -- with a neighbor.

Authorities put out bulletins across the nation for Zinkhan following the shootings and revealed that he had purchased an airline ticket in March for a May 2 flight to the Netherlands, where he owned a house.

But Zinkhan never showed up at the airport.