A preliminary hearing was delayed after prosecutors sought a mental evaluation.
JONESBOROUGH, Tenn. — A judge’s next move in the case against Dustin Tayler Machen will wait while prosecutors seek a mental evaluation for the 32-year-old man accused of setting his mother and her home on fire.
The request, made at an April 23 court appearance in Washington County, shifted the case from an expected preliminary hearing to a review of Machen’s mental condition. He is charged in an April 9 attack that authorities say began during an eviction dispute at a home on South Pickens Bridge Road and ended with his mother burned, the house in flames and deputies searching the area with a drone.
Machen had been scheduled for a preliminary hearing, a court step that can determine whether felony charges move forward. Instead, the state asked for more time so he could be evaluated. The delay does not decide guilt or innocence. It pauses the normal path of the case while the court receives information tied to mental fitness or other mental health questions. The charges remain attempted first-degree murder, attempted especially aggravated kidnapping, aggravated arson, aggravated burglary and interference with a 911 call. During an earlier appearance, a judge set Machen’s bond at $2 million. Public reports have not confirmed whether he has an attorney who can speak for him.
The allegations behind the court case are severe. Washington County Sheriff Keith Sexton said the victim was trying to remove Machen from the home before the fire. “She was in the process of evicting her son,” Sexton said. He said Machen left the residence and returned with a container of gasoline. Deputies said the woman later reported that Machen threw gasoline on her and on the house as she tried to leave. Investigators also said he destroyed her cellphone to prevent her from calling 911. The woman escaped anyway, reached a neighbor’s home and made the emergency call from there. That call sent deputies to the burning residence on the morning of April 9.
When deputies arrived, officials said, the house was already completely engulfed. The woman had burns to her arms and was taken for medical care. Early reports said she was transported to a local hospital, and later coverage said she was flown to Vanderbilt University Medical Center. Authorities have not released her name, and no complete public medical update was available as of May 4. The home was described as destroyed. The exact ownership of the property, the status of any eviction paperwork and the full history of who lived there have not been publicly confirmed. What officials have described is a short and violent timeline: an eviction-related conflict, a trip away from the home, a return with gasoline, an attack near the exit and a fire that overtook the structure.
The mental evaluation request added another layer because prosecutors had already raised past allegations involving Machen and his mother. At an earlier hearing, the state argued for a high bond and pointed to previous domestic-related charges. Local coverage reported that an assistant district attorney said Machen had previously been found not guilty by reason of insanity in a domestic violence case. Sheriff Sexton also said Machen had prior domestic violence charges tied to his mother. Those earlier matters may shape how attorneys handle the new proceedings, but the April 9 charges must still be judged on the evidence in the current case. The court has not publicly resolved what role any previous case will play.
Evidence described by authorities includes the victim’s statement, the condition of the burned home, her damaged phone, the alleged use of gasoline and Machen’s location after the fire started. Sexton said deputies deployed a drone during the search and found a backpack with personal items. Machen was discovered in a nearby field. The sheriff said he was watching the fire when deputies saw him. That scene is likely to become a central part of the prosecution’s account. Defense attorneys, once identified in public filings or proceedings, may challenge parts of the timeline, the mental state required for the charges or the way investigators linked Machen to the fire. No defense account has been reported.
The attempted first-degree murder charge requires prosecutors to show more than a fire occurred. They must build a case that the alleged act was an attempt to kill. The aggravated arson charge focuses on the burning of a structure under circumstances that prosecutors say created grave risk. The kidnapping-related charge suggests investigators believe the victim’s movement or ability to leave was unlawfully restricted. The burglary charge points to entry or remaining in a place under criminal circumstances, while interference with a 911 call is tied to the destroyed cellphone allegation. Each charge has its own elements, and the preliminary hearing, once held, will test whether there is enough proof to send them forward.
For now, the case is defined by the delay, not a ruling on the evidence. The woman survived after reaching a neighbor, but public records and reports have not answered several key questions. Officials have not said when the mental evaluation will be finished, whether a new preliminary hearing date has been set, or whether the victim will testify at that hearing. They also have not released a complete fire investigation report. Those unanswered points leave the court process as the main source of new information in the weeks after the blaze.
Machen remains accused, not convicted, in the April 9 fire. The next major step is expected to depend on the requested mental evaluation and the rescheduling of the preliminary hearing in Washington County court.
Author note: Last updated May 4, 2026.