The 22-year-old man who survived a fishing disaster that apparently claimed his mother’s life was interviewed by Coast Guard officials on Tuesday before he returned to his home in rural Vermont.
“I feel healthy,” Nathan Carman said, speaking to reporters outside his home. “Emotionally I’ve been through a huge amount.”
His mother, Linda Carman, 54, who lived in Middletown, Conn., is presumed dead, the Coast Guard said.
Carman also thanked “the public for their prayers and for their concern for both my mother and for myself.”
He spoke just hours after he was brought ashore in Boston by a Coast Guard boat that picked him up from a Chinese freighter that rescued him off Martha’s Vineyard on Sunday.
Carman was interviewed in Boston by Coast Guard officials, the same day that Vermont law enforcement confirmed a search warrant was issued on Carman’s home in Vernon, and the Hartford Courant reported that he was a suspect in the 2013 shooting death of his maternal grandfather, 87-year-old John Chakalos, a Connecticut real estate developer.
Neighbors on the rural road where Carman lives were surprised by the law enforcement activity.
“I figured they had a search warrant,” Maynard Rounds, 76, said by telephone. “They were searching the home for three hours.”
Earlier Tuesday, Carman attended the Coast Guard interview with attorney Hubert J. Santos of Hartford, who said Carman “fully cooperated” with the Coast Guard, the Associated Press reported.
“It was a tragic accident,” Santos said.
The Coast Guard interview is intended to help the agency improve its rescue efforts, Groll said, and was not focused on Linda Carman’s disappearance.
Carman and his mother had left Point Judith, R.I. on Sept. 17 for a trip aboard his 32-foot aluminum fishing boat. The Coast Guard conducted a days-long search that covered 70,000 miles but called it off two days before the freighter found Carman in the lifeboat.
The Coast Guard also released an audio recording of its telephone call with Carman after he was rescued by the freighter.
“Have you found her?” Carman asked.
“No, we haven’t been able to find her,” the official answereed.
Listen: Communications between US Coast Guard and Nathan Carman
Globe correspondent Felicia Gans and Travis Andersen of the Globe staff contributed to this report. Material from the Associated Press also was used. Andy Rosen can be reached at firstname.lastname@example.org. Follow him on Twitter @andyrosen.