One man has died and another is in custody following an incident in Guilford, according to Shannon Moss of the Maine Department of Public Safety.

Members of The Piscataquis County Sheriff’s Office were performing a well-being check at 24 Pine St., when they found a man and woman seriously injured next door, Moss said.

The two were transported to a hospital. 

The man died en route, Moss said. His body was sent to the chief medical examiner’s office in Augusta, which will determine the cause and manner of death.

The woman is in critical condition.

Following an initial investigation, the Piscataquis County Sheriff’s Office took Ryan Carleton, 49, of Guildford into custody.

He is being held at Piscataquis County Jail and charged with assault. 

“His charges will be elevated pending an arraignment on Tuesday, August 18, 2026, at 11:45 am, at the Piscataquis County Judicial Center,” Moss stated. “Law enforcement believes this is an isolated incident and there are no ongoing public safety concerns.”

Anyone with information is asked to call Maine State Police Det. Jacob Ferland at (207) 973-3700, Ext. 9.

Information can also be submitted online.