Yarmouth Police Sgt. Sean Gannon honored on anniversary of his death


YARMOUTH, Mass. (WWLP) – Friday marks the one-year anniversary of the death of a Yarmouth Police Sergeant who was shot and killed by a suspect on Cape Cod. 

On April 12, 2018, Sgt. Gannon was assisting other officers in serving a warrant at a home on Blueberry Lane in the Marstons Mills village of Barnstable when he was shot in the head.  

He was taken to Cape Cod Hospital where he was pronounced dead. 

Officer shot and killed while serving warrant in Barnstable, suspect in custody

Gannon’s partner, K9 Nero, was shot twice by the suspect during the incident but survived. 

The suspect, 29-year-old Thomas Latanowich, was ordered held without bail during his arraignment in Barnstable District Court. 

On Friday, his wife sent the Yarmouth Police Department a letter about how thankful they were for the outpour of support throughout the community: 

Thank you for your prayers and your meaningful letters. Thank you for the pictures drawn by your children, for the flowers, gifts, cards and the many homemade meals. Thank you for the stickers on your cars, and the blue lights and flags on your homes. For all of that, and for so much more, I am eternally grateful. 

Yarmouth Police Chief Frank Frederickson said the department is still adjusting to the loss of Gannon: 

On behalf of the men and women of the Yarmouth Police Department, I cannot thank you enough for helping shoulder our grief and giving us strength when we were so vulnerable. 

Gannon is a 2007 alumni of Westfield State University. He was an 8-year veteran of the Yarmouth Police Department before being posthumously promoted to the rank of sergeant the same day he was laid to rest.

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