Police searching for a Wisconsin man considered armed and dangerous stepped up patrols on Sunday at churches near his home because of anti-religious views expressed in a manifesto he sent to U.S. President Donald Trump, officials said.

Joseph A. Jakubowski, 32, is wanted for breaking into a gun shop called Armageddon Supplies in his home town of Janesville, about 70 miles southwest of Milwaukee, on Tuesday, when several handguns and rifles were stolen, according to the Rock County Sheriff's Office.

Later that night, his truck was found nearby engulfed in flames, the Sheriff's Office said in a statement. Police believe Jakubowski torched the truck.

Joseph A. Jakubowski had a friend film the moment he mailed a letter to President Trump last Tuesday and still remains at large

His friend who stayed out of the video frame said 'You'll never forget this face, ever'. Police say they have located the cameraman, who is cooperating

Investigators have obtained a 161-page manifesto Jakubowski mailed to Trump. It was filled with barbs directed at officials from all levels of government, Rock County Sheriff Robert Spoden said last week.

Police have stepped up patrols at schools, government offices and churches in the Janesville area, but they aren't sure of Jakubowski is even in the state still

Investigators who analyzed the manifesto were also concerned about 'anti-religious views' in the document, which Jakubowski can be seen mailing to Trump in a video posted to social media.

'When you look at the document that he wrote, it's really a long laundry list of injustices he believes that the government and society and the upper class have put forth onto the rest of the citizens,' Spoden said, declining to offer details.

As a precaution, law enforcement officers increased their patrols at local churches and other places of worship on Sunday but no disturbances were reported, the Rock County Sheriff's Office said in a statement.

At least one Wisconsin church shut its doors.

Bethlehem Lutheran in Sun Prairie, less than 50 miles north of Janesville, canceled services after a man who was believed to resemble Jakubowski visited the church on Thursday. Investigators have not verified if it was Jakubowski.

A force of 150 law enforcement personnel, including Federal Bureau of Investigation agents, continued their manhunt for Jakubowski on Sunday.

Security footage at a Mobil gas station shows Jakubowski almost six hours before he mailed the manifesto to President Trump

The car registered to Jakubowski was found burning on a rural road not far from the gun shop he robbed after sending the letter

FBI agents provide tactical support to sheriff's detectives during a search for Joseph Jakubowski, in Janesville, Wisconsin last Thursday

A 15-minute-long social media video released Friday shows the footage of Jakubowski mailing a letter to the president.

He poses with the envelope addressed to the president and mails what appears to be the anti-government manifesto.

It was filmed by a friend who eerily says: 'Y'all have no idea what's about to happen,' as they wait for stamps at the post office.

As Jakubowski stamps the envelope his friend says: 'You'll never forget this face, ever.'

As they walk out of the post office, Jakubowski tells the camera: 'Anyone who got this letter, you might want to read it. There you see it's good s***. Revolutionary. It's time for change.'

His friend says: 'It's D-day. Remember this face,' to which Jakubowski responds: 'F*** the system,' before smiling at the camera.

Jakubowski marks the time he mailed the letter as April 4, 2017 at 5.43pm, hours before he is accused of robbing the gun store.

Jakubowski is believed to be the man seen in this surveillance video of a gun shop burglary in Janesville, Wisconsin last Tuesday night

Investigators say the suspect seen in this surveillance video stole 'a large quantity of high-end handguns and rifles' from the gun store

Authorities said he also has acquired a bulletproof vest and helmet.

Jakubowski became the prime suspect in the burglary of Armageddon Gun Shop after a car registered to his name was found burning on a rural road about three miles from the store within a half hour of the break-in.

Photos show Jakubowski at a Mobil gas station at 1pm on Tuesday and his torched car.

Spoden said an associate of Jakubowski told authorities he had been 'agitated' by national politics and 'recently verbalized a plan to steal guns and use them in an unspecified attack.'

The interior of Armageddon Gun Shop is shown. Police fear that Jakubowski robbed the store and may act on recent unspecified threats against schools and public officials

Jakubowski's car was found burning not far from the gun shop after the robbery

The associate also said Jakubowski had made non-specific threats toward schools and public officials, according to the sheriff.

Jakubowski, who served time in prison for trying to wrestle a gun away from a police officer, is believed to have become agitated about politics recently, authorities said.

A person who knows Jakubowski said he had spoken of his plans to steal guns and stage some kind of attack, possibly at a school, Spoden said.

It was unclear if Jakubowski, who according to local media was unemployed, remains in Wisconsin or if he had left the state. Federal agents were pursuing leads in other parts of the country.

The FBI has offered a $10,000 reward for information leading to his capture.

Authorities have warned people not to approach Jakubowski, calling him 'armed and dangerous.'

Anyone with information about his whereabouts is urged to call 1-800-CALL-FBI (225-5324).