Report: Senior Al Qaeda Leader Personally Beheaded Daniel Pearl

Analysis of blood vessels confirmed a tribute to senior al-Qaeda leader in which he broke the Wall Street Journal Daniel Pearl, according to a new report released Thursday.

Khalid Sheikh Mohammed, suspected of planning the September 11, 2001 terrorist attacks in the United States.

Muhammad did not deny his involvement in the murder of Pearl, who was abducted in January 2002.

A video of the murder had been circulated online about a month after being kidnapped, but the face of a murderer who slit his throat was not visible.

U.S. officials have accused Mohammed died in 2002.

"I decapitated with my blessed right hand the head of the American Jew Daniel Pearl in Karachi, Pakistan, Mohammed said, according to a Pentagon transcript released almost four years." For those who wish to confirm, there are pictures of me on the internet holding his head. "

The new report removes all doubt that Muhammad personally carried out the beheading.

FBI and the CIA used a technique called seam matching to compare the hand of the murderer with a photograph of the hand of Muhammad, according to the report.

Mohammed said the FBI, a senior Al-Qaeda has advised him to take control of the House of Pearl kidnappers, said the report.

Pearl was kidnapped on the way to what he thought was an interview with a radical cleric. At least 27 men have played a role in the kidnapping and death - of which 14 are considered free, the report said.

At least three different militant groups have been involved in crime and that the kidnappers, led by British-Pakistani Omar Sheikh, and a group of killers, led by Mohammed, according to a report.

It also highlights the obstacles faced by the authorities during the investigation, including contradictory evidence.

Pakistani authorities released a guard who was a key informant, and did not follow leads, according to the report.

Three year project was developed by Pearl teachers and students of Georgetown University in Washington DC He was released Thursday by the Center for Public Integrity.