Dixon, Ill ? A teenage girl was convicted Wednesday in the killing of a 16-year-old classmate who was choked, beaten and sawed into pieces after an argument over boys.

Sarah Kolb, 17, faces up to 60 years in prison.

The victim, Adrianne Reynolds, had just moved to East Moline from Texas about two months before she was killed.

On Jan. 21, 2005, Kolb, Reynolds and schoolmate Cory Gregory were in Kolb’s car at a fast-food restaurant when the fight began. Reynolds was killed and her body was burned, dismembered and hidden in two counties.

Gregory also is charged with murder and concealing a homicide and is scheduled to stand trial May 1.

Rock Island County State’s Atty. Jeff Terronez said Kolb was angry because Reynolds had shown interest in Kolb’s boyfriend and Gregory, her ex-boyfriend.

Prosecutors say the two took the girl’s body to Kolb’s grandparents’ farm and burned it, then returned two days later, sawed the body into pieces and dumped the remains on the farm and in Black Hawk State Park in Rock Island.