BARNSTABLE — A Massachusetts grand jury has handed up an indictment for a man charged with the murder of a police officer.

Prosecutors on Wednesday say 30-year-old Thomas Latanowich is indicted on nine charges, including the murder of Yarmouth Police Sgt. Sean Gannon.

Gannon, a New Bedford native, and his K-9 Nero were shot on April 12 as they and six other officers attempted to serve a warrant to Latanowich in Barnstable. He is being held without bail and will be arraigned in Barnstable Superior Court at a later date.

Gannon died of his injuries, and K-9 Nero has been in recovery. An attorney for Latanowich could not be immediately reached.