Brian Laundrie died from a gunshot wound to the head and his manner of death was suicide, according to his family's attorney and a local medical examiner.

His remains were found last month at a Florida reserve after a weeks-long manhunt following the disappearance and death of his fiancée, Gabby Petito. .

"Chris and Roberta Laundrie have been informed the cause of death was a gunshot wound to the head and the manner of death was suicide," attorney Steven Bertolino said in a statement Tuesday.

The office said its investigation included the examination of skeletal remains and consultations with forensic experts, including skeletal reconstruction and dental comparison for identification.   .

Petito, 22, was reported missing by her family on September 11 after her fiancée Laundrie returned from a cross-country trip at the beginning of September without her.

Petito's body was later found near Grand Teton National Park in Wyoming on September 19.