22-year-old Nathan Carman's Vernon, Vermont, home was searched by police, Monday night

By Lindsay Kimble
September 28, 2016 03:45 PM

The man rescued at sea on Sunday after floating on a raft for eight days was once a suspect in the 2013 murder of his grandfather, according to the Hartford Courant and other outlets.

Nathan Carman was the last known person to see grandfather John Chakalos alive, according to an arrest warrant application for the 22-year-old submitted by the Windsor police in July 2014 and obtained by the Courant.

Over the weekend, Carman was found drifting on a life raft by a freighter about 100 nautical miles from Martha’s Vineyard. Carman and his mother, Linda Carman, 54, had left Rhode Island on Sept. 18 to go on a fishing trip in a boat called “Chicken Pox,” the Associated Press reported.

Linda is still missing, and her whereabouts are “under investigation.” The Coast Guard does not believe that Linda could still be alive.

A search warrant was executed Monday night at Carman’s Vernon, Vermont, home, according to CBS Boston. Officers seized a modem, a Garman SIM card and a letter written by Nathan, CBS Boston reported.

The warrant, obtained by the Courant, revealed details from the 2013 investigation into Chakalos’ death.

Carman had dinner with Chakalos on Dec. 20, 2013. Chakalos was found dead in his home the next morning with three gunshot wounds to the head and torso.

While executing a 2014 search warrant for Carman’s Middletown, Connecticut, home – which was obtained by the Courant – authorities found a Remington tactical shotgun and boxes of ammunition, among other things, but the weapon did not match the caliber of the gun used to kill Chakalos.

The murder arrest warrant was returned unsigned with a request for information, and Carman was not charged, the Courant reported.

Chakalos left behind an estate worth more than $42 million to his four adult daughters, including Carman’s mother, the AP reported.

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Nathan Carman
Michael Dwyer/AP

On Tuesday, the Coast Guard released audio of their interview with Nathan after he was rescued, reported CBS Boston.

“Mom and I, two people, myself and my mom were fishing on Block Canyon,” Nathan told the Coast Guard, CBS Boston reported. “There was a funny noise in the engine compartment, I looked and saw a lot of water.”

He continued, “I had my mom bring in the reel, I brought the safety stuff forward. I was bringing one of the safety bags forward and the boat stopped out under my feet. When I saw the life raft, I did not see my mom. Have you found her?”

Carman further described whistling and calling for his mom.

Hubert Santos, Carman’s lawyer, told the AP that Carman has “fully cooperated” with the Coast Guard’s investigation.

Family members told the AP that Carman has Asperger’s syndrome, and that Linda thought they were going fishing closer to shore than Carman intended.

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