Hampden County District Attorney Anthony Gulluni is expected to share what he calls a significant development in an unsolved homicide case on Monday.
Gulluni says he'll discuss the update to the unsolved case of the death of Lisa Ziegert, a Westfield State University graduate who was abducted in Agawam in 1992 and whose body was found in the area several days after she disappeared.
A composite image of the murder suspect was released by prosecutors using DNA evidence last year.