( CNN ) -- A 64-year-old man already serving a life sentence for the murder of a woman in Georgia was convicted Tuesday of a similar murder in Florida . The jury in Tallahassee also found Gary Michael Hilton guilty on charges of kidnapping and grand theft in the murder of Cheryl Dunlap , said Florida State Attorney William Meggs . He was found not guilty of stealing the car belonging to the 46-year-old nurse , whose body was discovered in December 2007 in Apalachicola National Forest , southeast of Tallahassee , Meggs said . Hilton had previously been convicted of killing Meredith Emerson , a 24-year-old hiker whose naked , decapitated body was found in 2008 in the north Georgia mountains . Hilton directed authorities to her body and confessed to her kidnapping and murder .
Hilton was already serving a life sentence for the murder of a fellow hiker . Jury also finds him guilty of murder , grand jury in murder of Cheryl Williams . The body of the 46-year - old nurse was found in 2007 in Roosevelt National Forest .