*** NEW DETAILS *** HYANNIS MAN HELD ON DANGEROUSNESS AFTER THANKSGIVING DAY SHOOTING, DISTRICT ATTORNEY SAYS
IMAGES: HN photo of detectives investigating shooting victim’s vehicle at crime scene. Insert of Mark Griswold’s 2017 Barnstable Police booking photo for gun trafficking charges. Griswold reportedly pleaded guilty in 2018 and was sentenced to five years in state prison.
[DA’S MEDIA STATEMENT]
Cape & Islands District Attorney Robert J. Galibois announced on today’s date that Mark Griswold, 53 years old, of Hyannis, MA, has been found dangerous by the Barnstable County District Court, for his role relating to the Thanksgiving Day shooting in Hyannis.
Mark Griswold, 53 years old, of Hyannis, was found dangerous on the following charges: Firearm-Armed Assault to Murder, Assault and Battery with a Firearm, Carrying a Firearm without a License, Discharge a Firearm within 500 feet building, and Assault & Battery on a family or household member.
On Thursday November 23, 2023, at approximately 5:37pm Barnstable Police received a 911 call from a Hyannis address reporting gun shots being fired and an individual being hit. Upon arrival officers located victim with gunshot wounds and transported victim to nearby hospital. After further investigation Barnstable police were able to identify the shooter as Mark Griswold. Griswold had been recently released from State Prison after serving five years for firearm related offenses.
The charges stem from an ongoing investigation conducted by Barnstable Department. The case will be prosecuted by Assistant District Attorney Alexandra Isaacs, Chief of Domestic Violence Unit. Mark Griswold was found dangerous in the Barnstable District Court on December 8, 2023 and was held without bail. He is scheduled to appear in the Barnstable District Court on January 4, 2024, for a Probable Cause Hearing.
Mr. Griswold is also scheduled to appear in the Barnstable Superior Court on January 26, 2024, for a probation surrender hearing related to possession of a firearm charges.
Due to the nature of this case the Cape & Islands District Attorney’s Office will make no further comment at this time regarding charges against Mark Griswold. The Cape & Islands District Attorney’s Office reiterates that all defendants are presumed innocent.
INITIAL HN REPORT & VIDEO:
HYANNIS MAN CHARGED W/ ASSAULT TO MURDER FOR SHOOTING WIFE ON THANKSGIVING DAY, COPS SAY [HN VIDEO]
HYANNIS, Massachusetts – As you can see in the following HN Video, this past Thursday, November 23, 2023 – Thanksgiving Day – Barnstable Police were called to an address on Hamden Circle for a woman who had reportedly just been shot. CLICK HERE to read HN’s initial report entitled “WOMAN SHOT AT HYANNIS RESIDENCE ON THANKSGIVING DAY.”
HN has learned of an arrest in the case…
According to Barnstable Police documents filed during an arraignment in district court on Tuesday, November 28, 2023, Detective Kevin Connolly reports that on Thanksgiving at around 5:37 p.m., the Barnstable Police Department received a 911 call from 127 Hamden Circle. The call was reportedly placed by Mark Griswold who stated that someone had just shot at him and his wife… and that his wife had been hit.
Detective Connolly’s report continues to state that Hyannis Rescue arrived and transported the wife to Cape Cod Hospital for an “apparent gunshot wound to the left hand and right chest.”
But according to Detective Connolly’s report, there appears to be inconsistencies in statements made by Mark Griswold and his wife, the gunshot victim. Investigators also obtained nearby security camera footage that also reportedly seems to be telling a different story.
Mark Griswold reportedly told investigators that he was getting out of his car and was in the process of getting into his wife’s car to leave for dinner when he heard a “pow.”
The following images are copies of Detective Connolly’s report. HN has removed certain potentially sensitive details for the time being:




The following HN Video highlights the initial Thanksgiving Day scene and investigation…
[HN VIDEO – PRESS PLAY]
P.S. – Today’s Hytown Vignette is a brought to you by Bryan Ferry… [CLICK IT/CRANK IT! HEADPHONES ABSOLUTELY OBLIGATORY!]












