Brian Laundrie’s autopsy came back inconclusive and his remains were sent to an anthropologist “for further evaluation,” the family's attorney said Monday.

“No manner or cause of death was determined," Steven Bertolino told NBC News, adding that there has not been a determined timeline for when the anthropologist will conclude the evaluation of Laundrie’s remains. 

Bertolino added that Laundrie will eventually be cremated and his family has no immediate plans for a funeral. He said they may decide on a private ceremony at a later time. 

Laundrie’s human remains were found on Wednesday at a Florida preserve after weeks of searching for his whereabouts. His body was found alongside his personal items, including a backpack and a notebook. 

Criminologist Casey Jordan said he believes the notebook could contain Laundrie’s suicide note as well as an explanation of the events that led to the death of his 22-year-old fiance, Gabby Petito.

Laundrie, 23, went missing on Sept. 14 after authorities found Petito’s remains at a national forest in Wyoming. Petito's death was ruled a homicide by manual strangulation and Laundrie was determined to be a person of interest.