DA: Developments in 22-year-old Springfield death

Updated:

SPRINGFIELD, Mass. (AP) — Hampden District Attorney Mark Mastroianni (mas- tree-AHN'-ee) says there has been a significant development in the 22-year old unsolved slaying of a 90-year-old Springfield woman.

Myrtle Marrett was found beaten to death in her apartment in an elderly housing complex in January 1991.

Her body was found by a relative who went to check on her.

The district attorney tells The Republican newspaper (http://bit.ly/XTFOxl ) he will announce details of the development Tuesday morning.

Mastroianni says the Marrett case was one of several his office identified that could possibly benefit from new technological and scientific advances.

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Information from: The Springfield (Mass.) Republican, http://www.masslive.com/news/