investigation
Breaking news - Worcester Superior Court - Hit on a DNA sample in 1979 murder case,
May.31.2019
Breaking news - Worcester Superior Court: Hit on a DNA sample in 1979 murder case. The New England Innocence Project, assisted by investigators at Nardizzi & Associates Inc., announced Friday they are seeking Gary Cifizzari’s release pending a new trial after DNA evidence linked a deceased Rhode Island man to the murder of Constance Schiappa in 1979.
DNA matched that of Michael J. Giroux, an Army veteran who was drinking at a bar just minutes away from Schiappa's apartment in downtown Milford on the night of the murder. Nardizzi's investigation revealed that Giroux went on to lead a life of deceit— a bank robber and conman who committed crimes throughout his life, including murder, armed robbery, and who stole money from friends and family. Moreover, Giroux was also a State Police and FBI informant. He was interviewed by police just days after the murder of Mrs. Schiappa. Police missed signs of Giroux's culpability and instead focused on the Cifizzari brothers, Gary and Michael.
DNA matched that of Michael J. Giroux, an Army veteran who was drinking at a bar just minutes away from Schiappa's apartment in downtown Milford on the night of the murder. Nardizzi's investigation revealed that Giroux went on to lead a life of deceit— a bank robber and conman who committed crimes throughout his life, including murder, armed robbery, and who stole money from friends and family. Moreover, Giroux was also a State Police and FBI informant. He was interviewed by police just days after the murder of Mrs. Schiappa. Police missed signs of Giroux's culpability and instead focused on the Cifizzari brothers, Gary and Michael.
What does a PI do on a DNA case?
Jun.01.2019
The Gary Cifizzari case is one of the most satisfying professionally speaking. An innocent man goes free at last. Got lots of queries about what a PI does on a DNA case... Interviews— cases are about storytelling. Put flesh & bones on the real killer— he was at the scene, knew victim, long history of uncontrollable violence. A life of deception.


Interview - Favorite Detective Stories - early days in the PI biz, wrongful convictions, creativity, con men.
Dec.12.2018
John Nardizzi speaks with host John Hoda @ My Favorite Detectives Stories about early days in the investigations business, wrongful convictions, creativity. And con men.
Why Words Matter: Good Intel, Bad Reports, Ugly Outcomes
Jan.01.2018
The chief and worse aspect of CIA writing is the failure to let words say what they have to say, to use simple words and let them alone.” Lessons from the CIA’s classified guide to good writing
The Law and Science of Eyewitness Identification
Jun.11.2017
I summarized some key points for investigators in a piece for PURSUIT MAGAZINE on the new scientific studies being done in the field of eyewitness identification and memory.
Below are links to case law, scientific studies and law enforcement training guides and videos. Most of this collection was put together by the organizers of the National Symposium on Eyewitness Identification Reform held at Yale Law School, which I was fortunate to attend in July 2016.
- John Nardizzi
Court Cases
Law Enforcement Training Curriculum
Law Enforcement Videos
Model Legislation, Policies and Practices
Related Studies and Articles