This story just keeps getting weirder.

The FBI admitted Friday they interviewed the now-deceased Boston Marathon bombing suspect Tamerlan Tsarnaev two years ago and failed to find any incriminating information about him.

As first reported by CBS News correspondent Bob Orr, the FBI interviewed Tsarnaev, the elder brother of at-large bombing suspect Dzhokhar A. Tsarnaev, at the request of a foreign government to see if he had any extremist ties, but failed to find any linkage.

Both Tsarnaev brothers were legal permanent residents of the U.S. There is no evidence so far that either brother received any tactical training.

Other than building at least seven bombs that worked, and one brother escaping from 15 police officers in a firefight, sure, there’s no evidence of tactical training. Nothing to see here at all.

Want some more weird? Ok, here ya go.

Although the FBI initially denied contacting Tsarnaev, the brothers’ mother said they had in an interview with Russia Today.

Zubeidat Tsarnaeva said her son got involved in “religious politics” about five years ago, and never told her he was involved in “jihad.”

She insisted the FBI “knew what he was doing on Skype” and that they counseled him “every step of the way.”

The mom says that the FBI told her that her son was an “extremist leader” and that they were “afraid of him.”

And yet he became a naturalized US citizen.