How did DNA evidence finally help identify the suspect in a three‑decade‑old murder of a young mother?
Investigators identified the suspect in the Celestina Perez murder case after three decades. Advances in DNA technology provided the breakthrough after thirty-one years. Perez was assaulted and murdered in Springfield, Massachusetts, in 1995. He...

On Tuesday, July 22, 2026, Hampden District Attorney Anthony Gulluni announced that Joseph James Ceravolo Jr. has been identified as the man who assaulted and killed Celestina Perez. Ceravolo died of natural causes in 2013. With this revelation, the homicide investigation into Perez’s death is now officially closed.
Prosecutors emphasized, however, that the evidence firmly establishes Ceravolo’s responsibility for the killing. “If Ceravolo were alive today, he would be charged with the murder of Ms. Celestina Perez,” Gulluni said in a statement. An autopsy determined that Celestina Perez died from asphyxia caused by manual strangulation, along with blunt‑force trauma to her head, and her death was ruled a homicide.
Detectives interviewed her family, friends, and those who had been with her before her death, canvassed the neighborhood, and pursued leads, but no suspect was identified at the time. In recent years, the Hampden District Attorney’s Office Unresolved and Unidentified Case Investigation Unit selected the case for renewed investigation, believing advances in DNA testing could provide answers.
How DNA helped in identifying the killer?
According to Gulluni, subsequent testing of Perez’s preserved clothing by the Massachusetts State Police Crime Laboratory detected blood on her underwear and developed a major male DNA profile suitable for CODIS entry. The profile matched Joseph James Ceravolo Jr., who was 32 and living in Springfield at the time of Perez’s death, with results excluding 99.99 percent of the population. District Attorney Anthony Gulluni authorized additional independent testing by DNA Labs International, which confirmed the same profile from a separate bloodstain, with a probability of one in 130 million that an unrelated person could be included.
Ceravolo also could not be excluded from a DNA mixture found on Perez’s jeans. Two forensic laboratories independently tested bloodstains from different areas of her clothing and identified the same major male DNA profile, conclusively linking Ceravolo to the crime.
ALSO READ: Nancy Guthrie Update: FBI Director Kash Patel explains how probe agency’s late involvement may have cost heavy in investigation
The Economic Times Business News App for the Latest News in Business, Sensex, Stock Market Updates & More.