A man from Buffalo, Minn., was fatally shot in the back of the head and found in his cabin 120 miles to the north in Aitkin County, and his son was charged Friday with pulling the trigger, authorities said.

Ronald J. Bzdok, 24, of Buffalo, was charged with second-degree murder in connection with the shooting of Daniel Bzdok, 62, who was reported missing to Wright County authorities on Tuesday after leaving with his son for the cabin in Fleming Township.

The son was booked into the Aitkin County jail Thursday and remains held in lieu of $1 million ahead of a court hearing on Monday. A message was left with his attorney seeking a response to the allegations.

According to the Sheriff's Office and the criminal complaint:

An Aitkin County sheriff's deputy was dispatched on Wednesday to the cabin to check on the welfare of Daniel Bzdok, who had been the subject of a missing person's report out of Wright County.

The deputy arrived at the cabin, a trailer house, and the door was padlocked. He looked through a window and saw a bloodied, dead man in a chair next to a dining room table.

Shortly after 1 a.m. Thursday, agents from the state Bureau of Criminal Apprehension (BCA) determined that Daniel Bzdok had been shot in the back of the head.

A BCA agent found a note near the body saying that Daniel Bzdok had suspected that Ronald Bzdok and another son had stolen from him, and he intended to turn them in and seek a restraining order.

Ronald Bzdok had been staying in one of the cabin's bedrooms, while his father was using the master bedroom.

Donald Bzdok had been having trouble with both sons, who were fighting addiction, Donald Bzdok's brother told law enforcement officers.