Exclusive | University of Delaware student arrested for alleged mass shooting plot is Afghani: officials

The University of Delaware student busted with a huge cache of guns, body armor and a notebook filled with alleged plans to shoot up his school is an Afghan national who spent time as a refugee in Pakistan before immigrating to the US, officials told The Post.

Luqmaan Khan, 25, was born in Afghanistan, then fled at some point to Pakistan where he lived as a refugee for “a few years,” the Pakistani embassy told The Post. He then came to the US, where he became a citizen.

US officials first reported that Khan was a Pakistani immigrant, which the nation’s embassy has since refuted.

It remains unclear at what age he came to the US, but Delaware police told The Post he was a “youth” at the time, while Pakistani official said he lived “most of his life” in America.

Khan was arrested just before midnight on Nov. 24 after cops found him siting in his truck in a closed public park. When officers tried to speak with him he refused to engage, prompting a search of his vehicle.

What they allegedly found inside was terrifying: a handgun, several 27-round magazines, body armor, and a contraption that could convert the pistol to a semi automatic rifle, according to the US Attorney’s Office for the District of Delaware.

There was also a marble notebook filled with detailed plans to shoot up the campus police department at the University of Delaware, where Khan was an undergraduate student.

The notebook also had phrases like “kill all – martyrdom,” while Khan allegedly later told cops that becoming a martyr was “one of the greatest things you can do.”

And the alarming findings continued when they searched his home.

An AR-style rifle fixed with a red-dot scope was inside the Wilmington house, along with a second pistol which was also fitted with a device allowing it to fire as a fully automatic machine gun.

Nearly a dozen other extended — and loaded — ammunition magazines were found, along with more body armor.

None of those guns were registered.

He remains behind bars and is currently charged with illegally possessing a machinegun as the investigation continues.