Brian Laundrie died by suicide from a gunshot wound to the head, an attorney for the Laundrie family told us on Tuesday.

Attorney Steven Bertolino said the man’s parents had been informed of the autopsy’s finding. He did not say whether a date of death was estimated.

Laundrie’s remains were found in a Florida nature reserve last month after a weeks-long hunt. The 23-year-old man disappeared just days after his fiancée, Gabby Petito, was reported missing.

The couple had been traveling across the country in a converted van and documenting their travels on social media. The case gained national attention as authorities searched for both.

Laundrie, who had returned to his parents’ house in North Port, Fla., on Sept. 1 without Petito, had resisted police efforts to question him about the young woman’s whereabouts. Her parents reported her missing on Sept. 11.

On Sept. 13 or 14, his parents later told investigators, he left home with a backpack. They said they never saw him after that, and they reported him missing on Sept. 17.

Petito’s remains were found in a Wyoming camping area on Sept. 19. Her death was ruled a homicide by manual strangulation.

On Oct. 20, Laundrie’s remains were found in Myakkahatchee Creek Environmental Park, about 20 minutes from his parents’ home. By that time, the body was in an advanced stage of decomposition, complicating the determination of cause of death.