updated 7/18/2009 2:34:42 PM ET 2009-07-18T18:34:42

A jury has convicted an imprisoned sex offender of murder in the 1975 strangulation death of a Girl Scout in Tennessee.

Nine-year-old Marcia Trimble disappeared while delivering Girl Scout cookies in her Nashville neighborhood, and her body was found near her home 33 days later.

A jury on Saturday convicted 62-year-old Jerome Barrett of two counts of second-degree murder. He faces 44 years in prison on each count in this case. Barrett is currently serving a life sentence for the 1975 rape and murder of a Vanderbilt University student.

The Girl Scout killing is considered Nashville's most notorious crime in decades. Barrett became a suspect in the girl's death more than a year ago as a result of DNA testing. The jury took about eight hours to deliberate.

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