The crazed conspiracy theorist who filmed a YouTube video after allegedly decapitating his father had broken into a Pennsylvania National Guard facility shortly before he was arrested Tuesday.
Justin Mohn, 33, was found just before 10 p.m. carrying a gun and wandering around the Fort Indiantown Gap complex, a sprawling campus more than 100 miles from the home where he is accused of killing his dad, a state Department of Military and Veterans Affairs spokesperson confirmed to The Post.
Mohn, who had allegedly climbed the fencing around the fort, was arrested without incident.
Police had already been on the hunt for Mohn for hours when they pinged his cellphone to a tower near the National Guard base, prompting a nearby brewery to be put into an emergency lockdown.
His mother had arrived at her Levittown home where her son also lived around 7 p.m. to find her husband’s headless body surrounded by a “large amount of blood” in the bathroom, Middletown Township police and Bucks County detectives said in court documents.
Cops also found a machete and a large kitchen knife along with blood-soaked rubber gloves.
They had quickly fingered Mohn as the suspect in his father’s gruesome death after he flaunted a severed head in a plastic bag in a deranged YouTube video in which he encouraged violence against government officials.
He calmly said it belonged to “a federal employee of over 20 years and my father.”
Michael Mohn, 68, worked as an engineer with the geoenvironmental section of the US Army Corps of Engineers Philadelphia District.
“He is now in hell for an eternity as a traitor to his country,” the commentator said, identifying himself as Justin Mohn before going on an unhinged rant against the government in line with QAnon conspiracy theories, calling for “militias” across the US to unite and kill federal officials “on site.”
The video — titled “Mohn’s Militia – Call to Arms for American Patriots” — was posted to YouTube around 5:30 p.m., after which he allegedly stole his late father’s white Toyota Corolla to make the two-hour journey to Fort Indiantown Gap. The facility is one of the nation’s busiest National Guard Training centers, according to its site.
Why he fled to the base is not known — Mohn has never served in and appears to have no ties to the Pennsylvania National Guard, an agency spokesperson confirmed.
The former Progressive employee had a storied history of sharing unhinged content, including twisted songs and books about Satan, stalkers and corrupt presidential candidates.
He once penned a pamphlet titled “America’s Coming Bloody Revolution,” which chillingly described him killing his own family members in what he described as an “inevitable” violent revolution.
He also filed at least three lawsuits against federal agencies, including the US government, over his student loan debts.
In one, he claimed the US government “negligently and fraudulently” pushed him to take out student loans between 2010 and 2014 to pay for his education at Penn State University.
He alleged he should have been warned that his degree in agribusiness management would have been worthless in securing a job because he was an “overeducated white man.”
Mohn faces charges of first-degree murder, abuse of corpse and possessing an instrument of a crime.
