Police, fire and sheriff’s departments across Massachusetts tweeted condolences for Yarmouth Police Officer Sean Gannon, who was shot to death Thursday while serving a warrant on a suspect in Barnstable. The K9 officer was accompanied by his dog, who was seriously injured in the shooting, officials said.
Boston Police Department
#CONDOLENCES: The men and women of the Boston Police Department would like to extend our heartfelt condolences to the family, friends and fellow officers of fallen @yarmouthpolice officer Sean Gannon. pic.twitter.com/s45QES3tQi
— Boston Police Dept. (@bostonpolice) April 13, 2018
Boston Fire Department
On behalf of the BFD our heartfelt condolences go out to @yarmouthpolice Officer Sean Gannon and his family, friends & fellow Police Officers. pic.twitter.com/tAITcBLXF9
— Boston Fire Dept. (@BostonFire) April 13, 2018
State Police
With a heavy heart 💙, our condolences go out tonight to our brothers & sisters of the @yarmouthpolice & to Officer Sean Gannon's family & friends. We are also praying tonight for the recovery of Officer Gannon's K9 partner, who was also injured in today's tragic incident.#LODD pic.twitter.com/9ITeLFi3bq
— Mass State Police (@MassStatePolice) April 13, 2018
I wish there were words to describe how sick to my stomach I feel posting this.
— Acushnetpd.com (@AcushnetPolice) April 12, 2018
The members of the Acushnet Police Department send our sincerest thoughts, prayers and condolences to the family, the friends, and the... https://t.co/8K4IqM90oA
Our thoughts and prayers are with the family and friends of K9 Officer Sean Gannon, as well as the members of the @yarmouthpolice and Cape Cod Regional Law Enforcement Council SWAT Team. End of Watch: 04/12/18. We ask that you also keep them in your prayers. pic.twitter.com/Rw7UReHMvG
— Falmouth Police (@Falmouth_Police) April 13, 2018
Mattapoisett Police Department
Thoughts and prayers to the #Yarmouth Police Dep and the officer who was seriously injured in the line of duty.
— Mattapoisett Police (@MattapoisettPD) April 12, 2018
Wareham Fire Department
Our thoughts and prayers are with the #Yarmouth Police Department, wishing for a positive outcome for the officer.
— Wareham Fire (@WarehamFire) April 12, 2018
Hanover Fire Department
Our thoughts and prayers are with the Yarmouth police officer, his family and the department.
— Hanover Fire Dept. (@HanoverFire) April 12, 2018
Walpole Firefighters
What a tragedy. Rest easy brother. pic.twitter.com/gcGkvrA7PT
— Walpole Firefighters L2464 (@WFDLocal2464) April 12, 2018
Holliston Police Department
Our prayers are with the Yarmouth Police Dept. this evening as one of their officers was shot and severely wounded when attempting to serve a warrant. Please keep our brothers and sisters of YPD in your thoughts during this difficult time. 💙
— Holliston Police (@HollistonPolice) April 12, 2018
Malden Police Department
Thoughts and prayers for the Yarmouth Police Officer and his family as the officer was shot today assisting in the execution of a warrant entry in Marstons Mills.
— Malden Police (@MaldenPolice) April 12, 2018
Bedford Police Department
The Bedford Police send condolences to Officer Sean Gannon’s family, friends and our brothers & sisters on the Yarmouth PD. We are also praying for his K-9 partner who was also shot in the incident. @yarmouthpolice
— Bedford, MA Police (@bedfordpd) April 13, 2018
New Bedford Police Department
Our thoughts and prayers are with the Yarmouth Police Department. One of their officers was shot this afternoon and seriously injured. Your brothers and sisters in blue stand with all of you
— New Bedford Police (@NewBedfordPD) April 12, 2018
Weston Fire Department
Our thoughts and prayers are with Officer Gannon’s Family, Friends and the @yarmouthpolice family, our thoughts and prayers are also with his K9 partner who also injured. May Officer Gannon Rest In Peace ⚫️🔵⚫️ #LODD pic.twitter.com/CfhHzlCP3s
— Weston Fire (@WESTON_FIRE) April 13, 2018
Norwell Police Department
We are saddened to hear of the loss of the @yarmouthpolice Officer. Keeping the family of the officer and Yarmouth PD in our thoughts and prayers. pic.twitter.com/xT2wlYTwx0
— Norwell Police (@norwellpd) April 12, 2018
East Bridgewater Police Department
Our thoughts and prayers are with the family and friends of the fallen officer and the Yarmouth Police Department pic.twitter.com/DCc9Oukp9M
— East Bridgewater Police (@EBPolice) April 12, 2018
Holden Fire Department
Our thoughts & prayers go out to the Yarmouth Police Officer shot in the line of duty today, the officers family and the Cape Cod Police community.
— Holden Fire Department (@HoldenMassFire) April 12, 2018
Lakeville Police Department
Prayers to the Yarmouth Police Officer shot this afternoon.
— Lakeville MA Police (@LakevilleMAPD) April 12, 2018
Norton Police Department
Thoughts and prayers are with the Yarmouth officer, department and family. #thinblueline
— Norton Police Dept. (@NortonMaPolice) April 12, 2018
Chelmsford Police Department
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Our thoughts, prayers, and deepest condolences are with the Yarmouth Police Department as well as the Cape Cod Law Enforcement community! Rest In Peace Brother!
— Chelmsford Police (@ChelmsfordPD) April 12, 2018
Dartmouth Police Department
Our collective thoughts and prayers are with the brave officer and his family, as well as with the men and women of the Yarmouth Police Department.#dpdforypd
— Dartmouth Police (@DartmouthPD) April 12, 2018
Seekonk Police Department
Our hearts are heavy as our thoughts turn to our brothers and sisters of the Yarmouth Police Department during this most difficult time. We stand with you. ⚫️🔵⚫️
— Seekonk Police Dept. (@SeekonkPD) April 12, 2018
Hopedale Police Department
Our thoughts and prayers are with this officer, his family, as well as our brothers and sisters with the Yarmouth Police Dept. pic.twitter.com/V3ijYuItGz
— Hopedale Police (@HopedalePolice) April 12, 2018
Boxborough Police Department
We have learned that the Yarmouth Police Officer shot in the line of duty today has died. Our thoughts are with his family & colleagues during this time. pic.twitter.com/adBlafVsTZ
— Boxborough Police (@BoxboroughPD) April 12, 2018
Hubbardston Police Department
Thoughts and prayers for the wounded Yarmouth Police Officer.
— Hubbardston Police (@HubPD) April 12, 2018
Carver Police Department
Please keep the Yarmouth Police Department and the family of an officer who was shot in thoughts and prayers.
— Carver Police (@CarverPolice) April 12, 2018
Middleborough Police Department
Our thoughts and prayers are with the family and friends of the fallen officer and the Yarmouth Police Department pic.twitter.com/UjAPryCWOa
— Middleborough Police (@MiddleboroughPD) April 12, 2018
Barre Police Department
A Yarmouth Officer was murdered today. Please keep the Yarmouth PD as well as the officer's family in your thoughts and prayers.
— Barre Police Dep't (@BarreMaPD) April 12, 2018
Pembroke Police Department
Our thoughts and prayers are with the Yarmouth Police Dept. and the loved ones of the fallen officer who was killed in the line of duty today.
— PembrokeMAPolice (@PembrokePD) April 12, 2018
Lowell Police Department
Heartbroken to learn Yarmouth PD Off. Sean Gannon has died after being shot earlier today. Please keep his family and YPD in your thoughts.
— Lowell PD (@LowellPD) April 13, 2018
Framingham Police Department
Sending Thoughts and prayers to Yarmouth PD
— Framingham Police (@FraminghamPD) April 12, 2018
Brookline Fire Department
Our thoughts & prayers go out to family, friends & colleagues of the Yarmouth Police Officer who was shot serving a warrant today. pic.twitter.com/CJBsfXRl34
— Brookline Fire Dept. (@BrooklineFD) April 12, 2018
Burlington Fire Department
Burlington Fire Departments thoughts and prayers are with the members and families of the Yarmouth Police Department.
— Burlington Fire Dept (@BurlingtonMAFD) April 12, 2018
Nahant Police Department
Our thoughts and prayers are with the Yarmouth Police Dept.
— Nahant Police Dept. (@NahantPolice) April 12, 2018
Palmer Police Department
Our thoughts and prayers to the Yarmouth Police Department, the Yarmouth Community, the Barnstable Police Department, and most of all the family of the Officer who was shot and killed in the line of duty today. https://t.co/eBXsqlm3t9
— Palmer, MA Police (@palmerpolice) April 12, 2018
Uxbridge Police Department
The thoughts and prayers of the Uxbridge Police Department members are with our Brothers and Sisters of the Yarmouth Police Department as they go through the struggles of this tragedy. Rest easy sir, we have the watch from here. https://t.co/EIbEf97xTp
— Uxbridge MA Police (@UxbridgePD) April 12, 2018
Marlborough Police Department
A Yarmouth Police Officer was shot today while serving a warrant. Our thoughts and prayers are with the family of the officer, and the Yarmouth Police Department.
— Marlborough Police (@MarlboroughMaPD) April 12, 2018
Blackstone Police Department
Our thoughts and prayers are with the family and Yarmouth Police Department for the death of there K-9 Officer. The officer along with his canine partner were both shot today while serving a warrant in Barnstable. pic.twitter.com/Aqigo2hAK1
— Blackstone MA Police (@BlackstonePD) April 12, 2018
Cohasset Police Department
RIP Yarmouth K9 Police Officer Sean Gannon. EOW: 4/12/18. pic.twitter.com/NzbTjhb3mJ
— Cohasset Police (@CohassetPolice) April 12, 2018
Weymouth Police Department
Our hearts are heavy.....our thoughts and prayers are with Yarmouth PD and the family of our fallen brother. pic.twitter.com/ZXETuWeEIi
— Weymouth Police (@WeymouthPD) April 12, 2018
North Andover Police Department
Our thoughts and prayers are with the Yarmouth Police Dept.
— North Andover Police (@NoAndoverPolice) April 12, 2018
Somerville Police Department
We are deeply saddened by the loss of the @yarmouthpolice officer today. Our deepest condolences to his family during this time. Know that you are not alone and we offer our full support to you, Yarmouth PD and Cape Cod LE Family. May he rest in peace. pic.twitter.com/J5FyPZvBpt
— SomervillePolice (@SomervillePD) April 12, 2018
Haverhill Police Department
This evening, we are deeply saddened by the news from Cape Cod. Our thoughts and prayers are with the Yarmouth Police Department and his family.
— Haverhill Police (@HaverhillPolice) April 12, 2018
Officer Sean Gannon
EOW: April 12, 2018
Rest In Peace Brother
Chelsea Police Department
Our thoughts and prayers go out to Yarmouth PD and to the family of K9 Officer Sean Gannon. Officer Gannon paid the ultimate sacrifice today to protect and serve us all. May he Rest In Peace #YarmouthPD#NeverForgotten
— Chelsea Police (@CityofChelseaPD) April 12, 2018
West Brookfield Police Department
Our thoughts and prayers are with our brothers and sisters in the Yarmouth Police Department. Channel 5 is reporting one of their officers wounded earlier today serving a warrant has died.
— West Brookfield PD (@WbrkfldPolice) April 13, 2018
Orleans Police Department
The men and women of the Orleans Police Department are holding our brothers and sisters of the Yarmouth Police Dept.and their families in our hearts. Please say a prayer for them.
— Orleans Police (@OrleansPolice) April 13, 2018
Brockton Fire Department
The members of the Brockton Fire Department are saddened to hear of the loss of Yarmouth Police Officer Sean Gannon. https://t.co/KmVeXq9fO9
— Brockton Fire (@Brockton_Fire) April 13, 2018
Eastham Police Department
Please keep our brothers and sisters at Yarmouth PD as well as Officer Gannon’s family in your thoughts and prayers. https://t.co/O26JwijLZY
— Eastham Police Dept. (@easthampolice) April 13, 2018
Westford Police Department
Our thoughts and prayers go out to the Yarmouth Police Department and the family of K-9 Officer Sean Gannon. A tragic loss to the law enforcement community 💙💙💙
— Westford Public Safety Communications-Police&Fire (@WPDComm) April 13, 2018
Revere Police Department
Our thoughts and prayers go out to Yarmouth PD and the family of K9 Officer Sean Gannon. Rest In Peace. pic.twitter.com/ShhWFDqnKK
— Revere Police (@reverepolice) April 13, 2018
Marshfield Police Department
Rest in Peace Officer Sean Gannon EOW:4/12/2018. Thoughts and Prayers to his Family and to the Yarmouth Police for this tragic loss. pic.twitter.com/c3ajGUbVeu
— Marshfield Police Department (@Marshfield_PD) April 13, 2018
Freetown Police Department
135 police officers died in the line of duty in 2017. So far this year 38 have died. But none have hit closer to home than this one. Officer Sean Gannon, of the Yarmouth Police Department, was mercilessly killed in... https://t.co/voy2MrMana
— Freetown PD, MA (@FreetownPD) April 13, 2018
Webster Police Department
Our thoughts and prayers are with the Yarmouth Police Department and their families as they mourn the loss of one of their own.
— Webster Police Mass (@websterpd) April 13, 2018
Everett Firefighters
Our prayers are with our Brothers in Blue on the Yarmouth Police Dept. and the family of Officer Gannon
— Everett Firefighters (@IAFFLocal143) April 13, 2018
Halifax Fire Department
Our Hearts go out tonight to The members of the Yarmouth Police Dept and family of fallen Officer Sean Gannon.
— Halifax Fire MA (@halifaxfire) April 13, 2018
Methuen Police Department
Chief Solomon and the Men and Women of the #Methuen Police Department send our most heartfelt condolences to the Family, Friends and Brothers and Sisters in Blue of Officer Gannon @yarmouthpolice Our Hearts bleed Blue for all of you tonight.
— Methuen Police 🇺🇸 (@MethuenPolice) April 13, 2018
Essex County Sheriff
Our heartfelt and deepest condolences are with Officer Sean Gannon's family and friends and the Yarmouth Police Department for your tragic loss today @yarmouthpolice
— Essex County Sheriff (@EssexSheriff) April 13, 2018
Dighton Police Department
Our thoughts and prayers in solidarity are with the entire Yarmouth PD and the family and friends of Officer Sean Gannon. Ofc. Gannon was serving a warrant this afternoon when he was shot and killed by the intended party. There are no words...
— Dighton Police Dept. (@DightonPD) April 13, 2018
Rest In Peace, sir. pic.twitter.com/QJnzXYoiOf
Swansea Police Department
The Swansea Police Department offers deepest sympathies to the family of @yarmouthpolice Off. Sean Gannon and to the Yarmouth Police Department. pic.twitter.com/TcN7cjDZ4c
— Swansea Police (@SwanseaPolice) April 13, 2018
Dennis Police Department
With heavy hearts the men and women of the Dennis Police Department send our condolences to the family and friends of @yarmouthpolice Officer Sean Gannon. In the coming days the Dennis PD will stand with and support the Yarmouth Police Department and mourn Officer Gannon... pic.twitter.com/WSjLwMOQxN
— Dennis Police Dept. (@DennisMAPolice) April 13, 2018
Lincoln Police Department
Our thoughts & prayers are with the family & colleagues of Det. Sean Gannon of Yarmouth PD who was shot & killed today assisting Barnstable PD while serving a warrant. Rest Easy Brother!!
— Lincoln MA Police (@LincolnMAPolice) April 13, 2018
Edgartown Police Department
Our thoughts are with the Yarmouth Police, family and friends of Officer Gannon. This loss hits close to home for so many officers in the cape and island’s law enforcement community. Rest In Peace Officer Gannon. https://t.co/LpPzMPnWQw
— Edgartown Police (@edgartownpolice) April 13, 2018
Pittsfield Police Department
Officer Sean Gannon, EOW: 04/12/2018
— Pittsfield Police (@PittsfieldPD) April 13, 2018
The Pittsfield Police Department offers their condolences and prayers to the family of Officer Sean Gannon, the men and women of the Yarmouth Police Department, the members... https://t.co/ITuPWVXMsz
Alejandro Serrano can be reached at alejandro.serrano@globe.com.