Aussie sheik on suspect's playlist?

US authorities are investigating what they believe to be the YouTube playlist of the killed Boston bombing suspect, which included video by Australian Muslim cleric Sheik Feiz Mohamed, above. Pic: Brianne Makin Source: Supplied

US authorities are investigating if the Boston Marathon bombing suspect killed in a shootout was responsible for a YouTube playlist that included a video of controversial Australian Muslim cleric Sheik Feiz Mohammed.

A YouTube page with the user name TamerlanTsarnaev features religious videos, including one of the Sydney-born sheik titled, And They Say, It's Only Sunnah.

Sheik Feiz founded the Global Islamic Centre in Liverpool in 2000 and gained notoriety worldwide for his teachings, including blaming women for being rape victims.

Boston residents Tamerlan Tsarnaev, 26, and his brother Dzhokhar A. Tsarnaev, 19, were identified by the FBI in security footage walking through the crowd of spectators at Monday's Boston Marathon carrying backpacks. Just hours later, a wild shootout and police chase left the older brother dead.

A manhunt continues for the younger brother and much of Boston is in lockdown.

A user with the name Tamerlan Tsarnaev posted a video playlist on YouTube which included a video of the teachings of Sheik Feiz.

The same user added two videos five months ago to the playlist titled Terrorists, but each video was deleted and has the message: "This video is no longer available."

Fugitive Boston bombing suspect Dzhokhar Tsarnaev, left, and his late brother and suspect Tamerlan Tsarnaev in an image released by the FBI. Picture: AP/FBI

Another video, titled The Emergence of Prophecy: The Black Flags from Khorasan, begins with: "The prophet said when you see the black flags coming from the direction of Khorasan, you will join their army. That army has already started its march."

Authorities have not confirmed if the TamerlanTsarnaev who posted the videos is the Boston Marathon bombing suspect, but are scouring through any piece of information to determine why the brothers would want to bomb the marathon.

In the anti-Harry Potter clip, which Tamerlan Tsarnaev registered a "like", Sheik Feiz tells a story about visiting a house where Muslim children are watching a Harry Potter movie and the father describes it as "harmless fiction".

"Harmless?" Sheik Feiz shouts in the video.

"This film, whatever you think about it, glorifies, magnifies, promotes paganism.