Additional charges, including three counts of terrorism, were filed on Thursday, Feb. 15, 2024, against Justin Mohn, the Middletown Township man who killed his father last month and posted a disturbing YouTube video holding his father’s decapitated head and calling for violent attacks against members of the federal government.

Mohn, 32, of the 100 block of Upper Orchard Drive, was arrested hours after the Jan. 30 killing of his father Michael F. Mohn and was charged with first-degree murder, abuse of a corpse, and possession of an instrument of crime.

A supplemental probable cause affidavit was filed Thursday morning before Magisterial District Judge Charles D. Jonas, charging Mohn with three counts of terrorism, two additional counts of possession of an instrument of crime, and one count each of robbery, firearms not to be carried without a license, theft by unlawful taking, receiving stolen property, criminal use of a communication facility, terroristic threats, and defiant trespassing.

He is currently in Bucks County Correctional Facility without bail. He has a preliminary hearing scheduled for April 2.

Michael F. Mohn, 68, was killed on Jan. 30 inside his home at 145 Upper Orchard Drive. An autopsy found that the victim was shot in the head before he was decapitated using a machete and knife.

During their investigation, detectives learned that the victim’s adult son, Justin Mohn fled the location in the victim’s 2009 Toyota Corolla.

Police later received information about a 14-minute video posted to YouTube, which showed Justin Mohn picking up the decapitated head of his father, identifying him by name and as his father.

In the video, Justin Mohn ordered all militia and patriots across the United States to kill all federal employees. His father was a federal employee with the Army Corps of Engineers.

Mohn also listed specific federal officials who should be captured and publicly executed, including giving the name and address of a U.S. District Court Judge as one of his targets.

Detectives served a search warrant on Jan. 31, locating a single 9mm shell casing, a large kitchen knife and a large machete in the downstairs bathroom and a computer in Justin Mohn’s bedroom, which was identified as the same room where he recorded and posted his YouTube video.

The computer desk had blood stains on it and the computer monitor was on and open, revealing several tabs that showed that Justin Mohn utilized his computer to upload this video to several platforms to call on other individuals to initiate violent attacks against members of the federal government.

Hours after the murder, investigators tracked Mohn’s cellphone to the National Guard Training Center in Fort Indiantown Gap, Lebanon County. There, he climbed a barbed wire fence and entered a secure military installation.

The investigation revealed that Justin Mohn went to Fort Indiantown Gap in an effort to mobilize the National Guard to raise arms against the federal government.

Justin Mohn was taken into custody by the Fort Indiantown Gap Police Department and Pennsylvania State Police. He was in possession of a loaded Sig Sauer 9mm pistol.

In addition to the firearm, police recovered a USB device on him. Utilizing a search warrant, detectives reviewed the contents of the flash drive, finding a folder that contained several pictures of federal buildings along with instructions that appeared to show the steps needed to make an explosive device. 

The investigation found that Justin Mohn legally purchased the firearm the day before the murder from a gun store in Croydon. A records check with the Pennsylvania State Police found that Justin Mohn did not possess a valid license to carry a concealed firearm or a valid sportsman’s permit.  

This case is being investigated by Detectives with the Bucks County District Attorney’s Office and the Middletown Township Police Department, with assistance from the Federal Bureau of Investigation, the Fort Indiantown Gap Police Department, and Pennsylvania State Police.

This case is assigned for prosecution to Chief Deputy District Attorney Matthew S. Lannetti, Deputy District Attorney Ashley C. Towhey and Deputy District Attorney Christine Sassane.

Media Contact: Manuel Gamiz Jr., 215.348.6298, mgamiz@buckscounty.org

Criminal charges are allegations subject to proof in court. Defendants are presumed innocent until proven guilty in a court of law.