Robert Manns had not been heard from since April 11 before he was found dead in his Naylor home.
NAYLOR, Mo. — A welfare check by a worried sister led authorities to a homicide investigation after Robert D. Manns was found dead in his bedroom and his son was later arrested in another county, officials said.
The April 13 discovery turned a family concern into a criminal case now carrying five felony counts. Dustin D. Manns, 44, of Broseley, is charged with first-degree murder, armed criminal action, abandonment of a corpse, stealing a motor vehicle and tampering with a motor vehicle. His father, Robert D. Manns, 71, lived in Naylor. Authorities said Dustin Manns is being held without bond at the Ripley County Detention Center.
Robert Manns’ sister went to his home after she had not heard from him since April 11, according to details from the probable cause statement. When she arrived, the front door was unlocked. She found her brother dead in a bedroom and contacted law enforcement. The Ripley County Sheriff’s Office responded to the home in the 600 block of Route B. The sister gave deputies another detail that soon became important: Robert Manns’ silver Dodge Ram was not in the driveway. She also reported that Dustin Manns could not be reached by phone. Deputies then asked the Missouri State Highway Patrol’s Division of Drug and Crime Control to help investigate the suspicious death.
The early scene left investigators with several unanswered questions. They had to determine when Robert Manns died, who had last seen him alive and why the truck was gone. They also had to locate Dustin Manns, whose whereabouts were not immediately known. The patrol said investigators followed several leads, including the missing vehicle. Within hours, the search moved north into Butler County, where officers found the Dodge Ram at a residence in Poplar Bluff. Dustin Manns was also at the residence. Officers detained him there and took him to the Ripley County Sheriff’s Office for questioning.
During that interview, investigators said they obtained evidence tying Dustin Manns to the killing. According to the probable cause account, he allegedly admitted stabbing his father with a fish gig, also described as a fishing spear. Authorities said he also admitted striking him across the chest with the handle and asphyxiating him until he was dead. The fishing spear was found at the Naylor scene. Officials have not released a motive. They have not said whether the father and son argued before the killing or whether investigators found signs of forced entry at the home beyond the unlocked front door described by the victim’s sister.
The charges were filed April 14 by the Ripley County prosecuting attorney, one day after the sheriff’s office requested state help. The murder charge is the most serious count, but the remaining charges outline the broader theory of the case. Armed criminal action alleges the use of a weapon in a felony. Abandonment of a corpse concerns the handling or leaving of Robert Manns’ body after death. The stealing and tampering counts concern the Dodge Ram that was missing from the Naylor driveway and later found in Poplar Bluff. Prosecutors have not publicly filed a narrative beyond the probable cause details reported by authorities.
The case has a small-town footprint but crossed county lines quickly. Naylor is a Ripley County community in far southeast Missouri. Broseley and Poplar Bluff are in Butler County, north of Naylor. The movement of the truck helped shift the investigation from the victim’s home to a second location where the suspect was found. The Missouri State Highway Patrol said the Ripley County and Butler County sheriff’s offices helped with the investigation and arrest. That cooperation mattered because the suspected crime scene, the missing vehicle and the suspect’s location were not all in the same jurisdiction.
Public information released so far focuses on the sister’s discovery, the missing truck, the interview and the charges. Many parts of the case remain unknown. Authorities have not released autopsy results, a precise time of death or a full account of any evidence collected from the Dodge Ram. They have not said whether blood evidence, fingerprints, phone records or surveillance video were used to trace the truck or locate Dustin Manns. They also have not said whether anyone at the Poplar Bluff residence knew the truck was connected to a death investigation.
Dustin Manns’ case is expected to move through Ripley County court. He remains presumed innocent unless proven guilty. A first court appearance generally addresses the charges, bond status and legal representation. Later hearings may test whether prosecutors have enough evidence for the case to proceed toward trial. Because he is held without bond, any future request for release would have to be considered by the court. No next hearing date was publicly available when the case was first reported.
The sister’s decision to check on Robert Manns remains the first known public step in the case. Her concern after a break in contact brought deputies to the Route B home. Her report that the truck was missing gave investigators a lead that reached Poplar Bluff. By the next day, prosecutors had filed the five charges. The patrol said the counts are accusations and are not evidence of guilt.
Author note: Last updated May 7, 2026.