NEW YORK (CBSNewYork) — Brian Laundrie died by suicide, his family’s attorney said Tuesday.

Autopsy results show Laundrie died of a gunshot wound to the head, Steve Bertolino said.

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“Chris and Roberta Laundrie have been informed that the cause of death was a gunshot wound to the head and the manner of death was suicide,” he said in a statement. “Chris and Roberta are still mourning the loss of their son and are hopeful that these findings bring closure to both families.”

Laundrie’s remains were discovered last month in a Florida nature preserve.

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He disappeared during a nationwide manhunt for his fiancé, Gabby Petito.

Petito’s body was later found in Wyoming, and the coroner ruled her death a homicide by strangulation.

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Laundrie was described as a person of interest in the case.