The researcher said the German rifle used by 21-year-old who confessed to the killing of two American pilots at the airport in Frankfurt, jammed with six rounds left, you may save the lives of other pilots, Friday - Germany.

And wounded two others from the U.S. Air Force personnel in Wednesday’s attack Uka arid, ethnic Albanians from Kosovo.

UKA and refused to talk when formally charged before a judge Thursday to two counts of murder and three counts of attempted murder. But he said police were made by the long-shortly after the attack, according to the Prosecutor Rainer Griesbaum.

UKA and authorities said he had taken the National Front 9mm pistol and knives, two in the airport specifically to kill Americans “in retaliation for the U.S. mission in Afghanistan,” said Griesbaum.

He said that a YouTube video that he had seen the day before the attack, suggesting a raid on a house by U.S. soldiers in Afghanistan had inspired him to avoid “further atrocities.”

And when he approached a bus carrying 16 pilots had been parked outside the building No. 2 in the waiting transportation to Ramstein Air Base near the saw, as he stood outside the request and under the pretext of a cigarette, when asked whether they were soldiers in Afghanistan on their way.

“It’s when he said yes, the soldier 25 years) from behind the head,” said Griesbaum.

UKA then stormed the bus, shouting “Allah Akbar”. - Arabic for “God is great!” Griesbaum said the driver was shot in the head, killing him as well, –.

Griesbaum said then shot twice in the pilot 25 years), sitting on the bus, wounding him once, then fired at the driver, 21, shot him just fine.

“When I tried to shoot over 22 years,” said Griesbaum. “He pointed his gun to his head and pulled the trigger twice but the gun jammed and went out without any shots.”

Chased UKA he had fled, and the pilot attempted to fire, on his hands and his feet in the airport station and overpowered him with the police.

None of the pilots in uniform, with the exception of the driver.

People and identified the U.S. Air Force pilots are 25 years old) Older Nicholas J. Walden pilot from South Carolina, and Zachary pilot category 1 t. Cuddeback from the state of Virginia.

Alden has been appointed to the Security Forces Squadron at 48 buffered British Royal Air Force in England. Cuddeback is set to 86 Squadron Readiness for cars at Ramstein Air Base in Germany.

German authorities believe that extremism recently Uka, and acted alone - but Griesbaum said the incident shows that there is a serious danger of what he called “virtual jihad”, even if the extremists are not part of a radical network.

“The Islamist threat to act alone,” he said.

Police said Uka was shy, and had a few friends, and seem to get his ideas and not to visit a mosque or a personal contact, but from the Internet. He said he had not seen any of the mosques that the German police under control, they said.

Police said they had not been able to watch the video said he was inspired to violence, or whether this video is even identified.

Griesbaum said the case highlights the danger of extremism, the Internet, but added that the investigation may be slow and difficult.

“Collection of evidence from very difficult”, he told reporters.