<p>Investigators say there is no evidence that a suburban Atlanta dentist who pleaded guilty to killing his wife and a dental school girlfriend was involved in the death of an Alabama woman.</p><p>Barton Corbin pleaded guilty on Sept. 15 to killing his wife in 2004 and a girlfriend in dental school 14 years earlier. He received two life sentences in prison.</p><p>But he only had a loose connection with Harriett Gray, whose body was found in Lake Tuscaloosa in 1997, one year after she disappeared from her home. She worked for a dentist who is a former partner of Corbin.</p><p>"Our office has sent investigators, they met with police investigators in Alabama, and at this point we have no evidence that Bart was connected," said Gwinnett County Assistant District Attorney Chuck Ross. "If there was even an iota of evidence, we would go after that."</p><p>Hearn's death had been ruled a suicide, but her case was reopened soon after Jennifer Corbin was found dead in the Corbins' Buford home in December 2004. Both Hearn and Corbin died of single gunshot wounds to the head and their bodies were found with the gun lying nearby. Both were initially ruled suicides.</p><p>The Corbins' 7-year-old son found his mother's body in the couple's bedroom in December 2004, with a revolver next to her on the couple's bed. Five days earlier, Barton Corbin had filed for divorce and was suing for custody of their two boys _ the other was age 5 at the time _ and ownership of the $217,900 home in the affluent Atlanta suburb of Buford.</p><p>Corbin's attorneys had argued that both women's deaths were suicides and were not similar.</p><p>Corbin was first indicted by a Richmond County grand jury in December 2004 on charges of felony and malice murder in Hearn's death. Weeks later, a Gwinnett County grand jury indicted him on charges of felony murder and a firearms violation in the death of his wife.</p><p>Hearn, 27, a dental student at the Medical College of Georgia in Augusta, was found dead with a .38-caliber handgun in her lap, in July 1990 _ the same month Corbin became a dentist. Hearn and Corbin were classmates and had dated for more than a year, but were in the midst of a breakup at the time.</p><p>___</p><p>HASH(0x1cd9ccc)</p>
