Life sentence for man convicted of murdering Yarmouth Police Sgt. Sean Gannon

BARNSTABLE, MASS (WLNE) — The man accused of shooting and killing Yarmouth Police Sergeant Sean Gannon in 2018 has been convicted of second-degree murder.

Thomas Latanowich has been sentenced to life in prison for the murder of Sergeant Gannon. 

He was also sentenced to 10-15 years for various other charges in the case, including assault and battery with a deadly weapon, as well as numerous gun charges.

All charges included, the soonest Latanowich could be up for parole is in 35 years.

A jury of 12 people returned the guilty verdict Friday morning.

They had the choice of either first-degree murder or second-degree murder and ultimately chose the lesser of the two.

Latanowich shot and killed Sgt. Gannon on April 12, 2018, when Gannon and his K-9 partner Nero were serving an arrest warrant at a home in Marstons Mills.

K-9 Nero was also shot in the attack but survived.

Latanowich never denied shooting and killing Sgt. Gannon, and his defense team argued that he did not know Gannon was a police officer. 

Instead, they say Latanowich was acting out of self-defense, fearing Gannon was someone else with whom he had a previous dispute.

State prosecutors described Latanowich as a career criminal with a lengthy record.

After the verdict was returned, the family of Sgt. Gannon released a statement, which read in part:

“While we are disappointed in the verdict, the fact remains that our Sean is dead.”

It continued: “We are completely grateful and extend our heartfelt thanks to the many members of our communities that have reached out to our family in myriad ways throughout these past three years. Their support has been the steel in our spine: you will never be forgotten.”

Latanowich returned to Barnstable Superior Court Friday afternoon, where judge Jeffrey Locke handed down a life sentence for the murder of Sgt. Gannon plus a consecutive 10-15 years for the other charges. 

Categories: Massachusetts, News