PHILADELPHIA — A Lancaster County man whose ties to state Sen. Doug Mastriano and whose boasts of macing police during the Jan. 6 Capitol riot earned him a level of notoriety among amateur online insurrection hunters has been arrested, according to court filings unsealed Tuesday.

Agents detained Samuel Lazar, 37, outside of his home in Ephrata Monday, three months after online sleuths first identified him as Suspect 275 from photos issued by the bureau of its most wanted insurrectionists.

They knew him by the nickname “Face Paint Blowhard,” a moniker the online sedition hunter community gave him due to the distinctive figure he cut — dressed in a tactical vest and goggles and with his face painted in camouflage — in photos and videos circulated on social media from the front lines of the deadly attack.

“We need to hang these motherf---ers,” he shouts.

That appearance of impunity prompted questions from some about why Lazar had not been charged alongside the dozens of other Pennsylvanians prosecuted for playing a role in the riot.

The FBI declined to comment on the delay in Lazar's arrest. But officials have previously blamed such delays in other Capitol cases on the overwhelming number of leads they have received in their efforts to track down insurrectionists.

Lazar is expected to make his initial appearance in federal court in Allentown Tuesday afternoon on charges including assaulting police and obstruction of law enforcement during a civil disorder.

But Lazar may have contributed much of the evidence against him through his own Facebook posts, chronicling his activities in Washington the day of the riot.

Early on the morning of Jan. 6, he posted a video of himself in Washington in anticipation of what he described as “an eventful day.”

“Donald Trump is going to shock the world!” he said. “We're ready for war, if needed.”

He posted again after the day's chaos, saying there is “a time for peace and there's a time for war.”

“Our constitution allows us to abolish our [government] and install a new one in [its] place,” he wrote.