HARTFORD, Conn. _ As authorities continued to gather information in the case of rescued boater Nathan Carman, speaking with him in Boston and searching his home in Vermont, court records show that Carman was a suspect in the unsolved 2013 fatal shooting of his grandfather in Windsor.
In July 2014, Windsor police submitted an arrest warrant for Carman on a murder charge, but the warrant was returned by the prosecutor unsigned the next day, according to a warrant that police used to search Carman's apartment in Middletown, where he lived at the time.
The search warrant indicates the arrest warrant was returned with a "request for further information." Carman was not charged.
The chief state's attorney's cold case unit is assisting Windsor police in the investigation but no arrests have been made in the murder, authorities said.
Carman's lawyer, Hubert Santos, had no comment Tuesday on the Windsor investigation. He said his client cooperated with the U.S. Coast Guard when he was brought in to Boston Harbor on Tuesday morning after being rescued in a life boat by a passing freighter Sunday, eight days after going missing.
Carman, 22, left Point Judith, R.I., with his mother, Linda Carman, 54, of Middletown, on Sept. 17. When he was found by the freighter, he was alone and told Coast Guard officials his mother never made it to the life raft. She is presumed dead.
Carman arrived at his home in Vernon, Vt., about 8 p.m. Tuesday and made a short statement.
"I would just like to thank the public for their prayers and concern for both my mother and myself," he told reporters. "And I would like to thank the crew of the ship that rescued me, both for rescuing me and for treating me very well.
"I feel healthy," he said. "Emotionally, I've been through a huge amount. My request is that I just be left alone to mourn naturally."
His father, Clark Carman, who had driven him home, spoke briefly as he pulled out of the driveway: "I'd rather not say anything more at this point. Between the two of us, it has been a very rough day."
A night earlier, South Kingstown, R.I., police searched the home, located not far from the Massachusetts border. Carman and his mother had left on their fishing trip from Ram Point Marina in Point Judith, R.I.
Police obtained the search warrant as part of the missing person investigation.
A neighbor said at least eight law enforcement cruisers, including the local sheriffs department and state troopers, were at Carman's house Monday night, and authorities with flashlights went through each level of the four-story home from 6:45 to about 9:45 p.m.
South Kingstown Detective Lt. Alfred Bucco III wrote in his application for the warrant that police were seeking documents, maps, global positioning devices, computers, hand-held electronic devices and books that would provide information about the location or destination of the Carmans. Police were also seeking receipts for purchases of boat parts or equipment for repairs to Carman's boat.
"This investigation revealed that Nathan's boat was in need of mechanical repair and that Nathan had been conducting a portion of these repairs upon his own volition which could have potentially rendered the boat unsafe for operation," Bucco wrote in the affidavit. Police said they believed they could find evidence in Carman's house, including information about where he intended to fish, that would support a charge of "operating so as to endanger, resulting in death," according to the warrant.
The search warrant indicates police removed a modem, a GPS device SIM card and a letter written by Carman from the house. There is no indication who the letter was written to. Police did not find a computer, the records show.
The details of the slaying of Nathan's grandfather, John Chakalos, at his home on Overlook Drive in Windsor, are contained in the warrant application to search Nathan's apartment in 2014.
The search warrant says Nathan was the last known person to see Chakalos alive on Dec. 20, 2013, as the two were having dinner. The next morning, one of Chakalos' daughters found 87-year-old Chakalos dead in his home _ shot three times in the head and torso.
The search warrant states that Carman, then 20, became a suspect after police interviewed his mother, Linda Carman, who told them that her son was supposed to meet her in Glastonbury at 3 a.m. that morning to drive to Rhode Island but didn't show up.
Police searched Nathan's Middletown apartment on George Street on July 18, 2014, and found a Remington tactical shotgun, a rifle scope and several boxes of ammunition, the search warrant states. The rifle did not match the caliber of the gun used to kill Chakalos, the search warrant says.
The Chakalos case remains open, and the state has posted a billboard on I- 91 that says the family is offering a $250,000 reward for information.
An audio recording released by the Coast Guard on Tuesday offers the most detailed description so far of the events leading to the sinking of the 31-foot aluminum boat, the Chicken Pox, around midday Sept. 18.
In the recording of Carman's brief conversation with the Coast Guard via radio from the freighter, he told authorities that engine noises first signaled a problem that eventually sank the vessel, leaving him adrift in a life raft and his mother missing.
"There was a funny noise in the engine compartment. I looked and saw a lot of water. ... I brought the safety stuff forward ... the boat just dropped out from under my feet," he said in the ship-to-shore conversation soon after he was rescued by the freighter.
"When I saw the life raft, I did not see my mom," Carman said.
Then he asked, "Have you found her?" A Coast Guard official told him they had not.
"I got to the life raft after I got my bearings, and I was whistling and calling and looking around, and I didn't see her," he said.
No distress call was made from vessel, the Coast Guard has said.
In the warrant used to search his home in Vermont, South Kingstown police said a friend of Linda Carman's told police that she had refused to go fishing any farther than Block Island and that she believed their destination was Striper Rock near Block Island, according to the search warrant.
A woman whose boat was docked next to Carman's told police that he told her he intended to go fishing at the "Canyons," about 100 miles off shore, according to the warrant. Carman told the Coast Guard the boat sank at Block Canyon.
Another witness told police that Carman removed the trim tabs from his boat and patched the holes with a marine sealant, the warrant said. He also told police he did not see any fishing equipment. Trim tabs provide lift to help keep a boat on a straight plane.
A witness at Point Judith Marina told police there were "many issues" with Carman's boat, including a newly installed motor and air getting into the fuel lines. The witness also said there was a problem with the boat's bilge pump. He said he was unsure whether the pump or motor issues were resolved prior to the fishing trip.
Carman left the base accompanied by his father Tuesday afternoon, authorities said. Clark Carman, who arrived from California, drove his son from the base shortly before 3 p.m., the Coast Guard said.
When the freighter arrived in Boston Harbor, a crew of four aboard a 45-foot Coast Guard response boat met the ship and brought Carman to the base. The Coast Guard planned to conduct a face-to-face survivor debriefing, which Chief Petty Officer Luke Pinneo said is "protocol anytime we have a boat sinking at sea."
Coast Guard officials did not plan to ask pointed questions about the disappearance of Linda Carman.
"That's really outside our point of focus," he said. "Our main focus here is that he gets back safely and is reunited with his family."
Petty Officer 3rd Class Nicole Groll said Carman was "talking to Coast Guard officials" just before 10 a.m. "We all want to know what happened out there," she said.
Officials Friday afternoon gave no details about their conversations with Carman.
When he arrived, Carman, who had a beard, was wearing an orange Coast Guard life vest over a white jumpsuit that had apparently been given to him aboard the freighter. A row of photographers snapped Carman's picture as he walked to a waiting car.
State records show the Carmans both renewed their fishing licenses in the spring.
