Federal prosecutors say they’ve returned from an overseas fact-finding trip carrying new evidence against a Brooklyn man charged with trying to join a mujaheddin group to attack US armed forces abroad.

The case centers on Betim Kaziu, a US citizen who allegedly sought jihadist training and weapons from Islamic militants overseas.

Prosecutors with the US Attorney’s Office in Brooklyn traveled to Kosovo last month to ask a witness about Kaziu’s activities in the Balkans when he was spending time there prior to his August 2009 arrest.

During a special proceeding in a district court in southern Kosovo city of Prizren, the man told US prosecutors that he and Kaziu had watched al-Qaeda propaganda videos together on Kaziu’s computer in Kosovo.

The new witness also testified during the May 23 deposition that Kaziu had indicated “he wanted to die a martyr for the cause of Islam.”

In addition, the man told US prosecutors that he thought — but was not certain — that Kaziu “maybe” had told him that he also wanted to join al-Qaeda.

The new testimony was unveiled in a letter sent by prosecutors to Judge John Gleeson in New York.

Assistant US Attorney Shreve Ariail told the judge that prosecutors may decide present the evidence at Kaziu’s upcoming trial.

The feds say that Kaziu allegedly traveled to Cairo in February 2009, where he allegedly tried to buy weapons.

Kaziu then sought to join Al-Shabbab, an armed movement listed as a terrorist group by the State Department, and wanted to train in Pakistan to fight American troops in Afghanistan, Iraq and the Balkans, prosecutors say.

He eventually traveled to Kosovo, where he was arrested by local authorities Kaziu has maintained his innocence and his attorneys have promised to dispute the charges at trial.

(Source: NY Post)