(KLZA)--The family of Alex Mayfield, whose body was recovered in August 2024, from his submerged car in the Missouri River just south of the Brownville Boat dock, alleges the investigation into Mayfield's death was botched by the Nemaha County, Nebraska Sheriff's Department.

Mayfields body was discovered a week after he went missing.

KOLN-TV reports the Nemaha County Sherif's Office ruled the cause of Mayfields death as inconclusive.

Mayfields family hired a private detective to do further investigation and alleges unsettling evidence was found inside Mayfields vehicle.

The detective says he found parts of Mayfield's hand clasped to the backside of the driver's seat headrest and a medicine bottle that he believes contains drugs along with a makeshift weapon and a ring that did not belong to Mayfield.

The detective, Erik Rezabek, is a state-licensed detective, and founder of the missing person organization ‘Bring Em Home.’

Mayfield's sister and Rezabek, say their next step is to reach out to the state- attorney general.