Doane Beal & Ames

160 West Main Street, Hyannis, MA


K-9 Officer Sean McNamee Gannon

August 22, 1985April 12, 2018

K-9 Officer Sean McNamee Gannon, Yarmouth PD, age 32, died in the line of duty on April 12th, 2018.

Born August 22nd, 1985 in New Bedford, MA, he graduated from All Saints Elementary School in 1999, and Bishop Stang High School in 2003. Gannon graduated with honors from Westfield State University in 2007 with a Bachelor of Science in Criminal Justice, a Master’s with honors from Massachusetts Maritime Academy with a degree in Emergency Management in 2011, and the MBTA Municipal Police Academy. Gannon’s internships included Nantucket Police, Westfield Police, and earned certifications as an EMT and Life Saving Instructor. Gannon started his career at Stonehill College in 2007 as a member of the Campus Police before joining the Yarmouth Police Department in 2010. Gannon was part of the Emergency Management Unit, a part-time member of the Proactive Anti-Crime Team, and he was the first K-9 narcotics officer for YPD. After retiring the K-9 narcotics officer, Gannon acquired the patrol dog who was also injured at the scene of the crime.

Sean leaves a legacy of high moral integrity, infectious humor, and collaborative work with colleagues. He enjoyed travel, working with his hands, donating his time to Big Brother/Big Sister and being outside. He loved spending time with his family and friends. Sean was deeply intuitive and inspired others to be there best selves.

Sean leaves his wife, Dara (Bryan), his parents, Patrick and Denise, his siblings, Timothy and his fiance Mary, Martha and her husband Derrick, his in-laws Kathy and Dean Bryan, and their son Ross, along with many relatives and friends.

Whatever Sean did, he gave 100% of himself. He will be profoundly missed by his family, colleagues, and friends.

Vigil for the Deceased and visitation will be on Tuesday, April 17th, 2018 from 4:00 PM - 8:00 PM at St. Pius X in South Yarmouth, MA. Mass of Christian Burial will be at 11:00 AM at St. Pius X Church, 5 Barbara St., South Yarmouth, MA on Wednesday, April 18th, 2018. Burial will be held privately.

The family deeply appreciates the incredible outpouring of local and national messages of support and condolences. The family particularly wishes to recognize the outstanding presence of the Yarmouth Police Department during this difficult ordeal. In lieu of flowers, please make a donation to Yarmouth Police Foundation or The Cape Cod Foundation. To leave an online condolence, please visit www.doanebealames.com


  • Vigil for the Deceased and Visitation Tuesday, April 17, 2018
  • Mass of Christian Burial Wednesday, April 18, 2018


K-9 Officer Sean McNamee Gannon

have a memory or condolence to add?

Raven Sulluvano

April 29, 2018

I have lived here on Cape for 11.5 years an never in my life have I seen such love an compassion the YPD has shown. Sgt. Sean Gannon was someone my son looked up to he once told my son the YPD would live to have him one day because my son wants to be a officer. He gave my son hope an that's what more young men need. Thank Sgt. Gannon you will deeply missed an forever remember in my family 💙

Michael Connelly

April 22, 2018

Rest in Peace, you sounded like a really good man.

Gina Pratt

April 20, 2018

My thoughts and prayers go out to Officer Gannon's family. I pray that K-9 Nero continues to heal and is soon reunited with your family.

Sue Porter

April 19, 2018

I did not have the opportunity to meet Sean... but wanted to let Dara and his family know how much his story has affected me. Such a senseless loss... my deepest sympathies. I hope the judges who let the individual responsible for this learn.. it is not okay to let these criminals walk the street. He should never be allowed to see the light of day again, and too bad Sean and his family is paying the ultimate sacrifice. My prayers for the family.

Michael Hayden

April 19, 2018

I didn't know Sean or the Gannon family, but I felt I needed to share my condolences and prayers with you! From the countless articles I read, there was no doubt Sean was an incredible police officer, and person. I wish Nero a speedy recovery as well!

Christopher Desmond

April 18, 2018

My deepest condolences to Dara and the rest of the of the Gannon family. I have the utmost respect for law enforcement and he is a hero in my eyes as I have always seen Yarmouth as my second home where I would summer with my late grandparents. He will be greatly missed

Beverly Costa-Ciavola

April 18, 2018

Dara, I am just heartbroken for you and for Sean's family. Please accept my most sincere condolences and know that I am sending LIGHT and LOVE your way. Sean shines among the stars, lighting up the night sky and will watch over you always.

Karen Armstrong

April 18, 2018

My prayers for Sean's wife, parents, siblings, dear friends, acquaintances, and those he helped through his life are with you all during this devastating time. I did not know Sean but my heart aches for his family, friends, and colleagues. May your hearts be lifted up by the many wonderful memories of the legacy Sean left behind. He will always love you and watch over you. I am so saddened for you. My prayers will continue during your time of extreme grief. Godspeed.

Jean Marzilli

April 18, 2018


Sean and Nero our Blue Hero’s were a unit that you couldn’t break apart
That was until a bullet separated them and it broke everyone’s heart
Sean was a special person that no one will ever forget
Especially Nero who doesn’t know what happened that it was Kismet
He gave his heart and soul to everyone he met
The community will always be forever in his debt
Willing to go the extra mile for needy girls and boys
Being with him made them happy and brought them so much joy
He was a valued member of Yarmouth Police and became part of their flock
He and Nero were a great team and their K9 building block
We will always remember his infectious laugh and willingness to share
Giving so much of his time and energy and wanting no fanfare
Dara was the love of his life and now she and others cry rainbow tears
For the years they no longer have to share and he’ll never again be near
He’ll always be remembered with love and honor for sacrificing his life
His soul is in heaven now he has to deal with no more strife
He is looking down on the awesome outpouring of love and never knew
How many people he touched just being himself he really had no clue
So, remember when you pass a man in blue give thanks he is there for you
Don’t forget Nero and his fellow dogs as they fight ferociously for you to

Jean E Marzilli

Tammy Chevrette

April 17, 2018

My deepest sympathies go out to Officer Gannon's family and loved ones. Like many others, I did not know Officer Gannon but I am deeply saddened by his untimely and tragic passing. My thoughts and prayers are with you and I pray that Nero makes a full recovery. God bless.