More Information Released on Death of Man in Concord

More information has now been released on the death of a man in Concord.

Authorities say 19-year-old Zackary Sullivan was found dead of a gunshot wound to the neck outside of a Dunkin’ in the city Tuesday night.

Following an autopsy, the case has now been declared a homicide.

Investigators do not believe there’s any threat to the public and are asking witnesses to submit tips by dialing 911.