Question:  Impending Death is a photograph of 1 WTC  after being stuck by an airplane piloted by who?

Context paragraphs:
Impending Death: Impending Death is a photograph taken by freelance photographer Thomas Dallal on September 11, 2001.  The photograph depicts the North Tower (1 WTC) of the World Trade Center, on fire after being struck by American Airlines Flight 11 at 8:46 AM, and shortly before its collapse at 10:28 AM.  Visible in the photograph are numerous people trapped in the upper floors of the building, hanging out of windows because of the intense smoke and heat.  They were unable to escape because of all stairwells and elevators above the 91st floor being severed by Flight 11's impact.

One World Trade Center: One World Trade Center (also known as 1 World Trade Center, 1 WTC or Freedom Tower ) is the main building of the rebuilt World Trade Center complex in Lower Manhattan, New York City.  It is the tallest building in the Western Hemisphere, and the sixth-tallest in the world.  The supertall structure has the same name as the North Tower of the original World Trade Center, which was destroyed in the terrorist attacks of September 11, 2001.  The new skyscraper stands on the northwest corner of the 16 acre World Trade Center site, on the site of the original 6 World Trade Center.  The building is bounded by West Street to the west, Vesey Street to the north, Fulton Street to the south, and Washington Street to the east.

List of tenants in One World Trade Center: The original One World Trade Center (also known as the North Tower, Tower 1, Building One, or 1 WTC) was one of the Twin Towers of the original World Trade Center in New York City.  It was completed in 1972, standing at a height of 417 m , and was the tallest building in the world until being surpassed by the Sears Tower in Chicago in 1973.  It was distinguishable from its twin, the original Two World Trade Center, also known as the South Tower, by the 110.3 m telecommunications antenna on its roof.  Including the antenna, the building stood at a total height of 527.3 m .  The building's address was One World Trade Center, with the WTC complex having its own ZIP code of 10048 due to its large size.

World Trade Center Jakarta: World Trade Center Jakarta is a complex of commercial high-rise buildings at Jalan Jenderal Sudirman, Jakarta, Indonesia.  The buildings of the complex are named as WTC 1, WTC 2, WTC 3, WTC 5 and WTC 6.  Total land area of the complex is about 8 hectares.  WTC 5 and WTC 6 of the complex was completed in 1985, which were then known as Metropolitan I and Metropolitan II.  Both the buildings are 65 meters high with 16 floors above the ground.  WTC 1 was also completed in 1985, which has 20 floors above the ground and 90 meters high.  WTC 2 was completed in 2002, which is 160 meters tall and has 30 floors above the ground.

Death knell: A Death Knell was the ringing of a bell immediately after a death to announce it.  Historically it was the second of three bells rung around death; the first being the "Passing Bell" to warn of impending death, and the last was the "Lych Bell", or "Corpse Bell", which survives today as the Funeral toll.

World Trade Center in popular culture: The original World Trade Center was a landmark building complex in Lower Manhattan, New York.  The famous Twin Towers (1 WTC and 2 WTC) were completed by 1973 and were among the tallest buildings in the world until their destruction on September 11, 2001.  An iconic feature of the New York City skyline for nearly three decades, the World Trade Center has been featured in cartoons, comic books, computer games, films, photographs, and artwork.

Near-death experience: A near-death experience (NDE) is a personal experience associated with death or impending death.  Such experiences may encompass a variety of sensations including detachment from the body, feelings of levitation, total serenity, security, warmth, the experience of absolute dissolution, and the presence of a light.

World Trade Center (1973–2001): The original World Trade Center was a large complex of seven buildings in Lower Manhattan, New York City, United States.  It featured the landmark twin towers, which opened on April 4, 1973, and were destroyed as a result of the September 11 attacks in 2001.  At the time of their completion, the "Twin Towers"—the original 1 World Trade Center, at 1368 ft ; and 2 World Trade Center, at 1,362 ft —were the tallest buildings in the world.  The other buildings in the complex included the Marriott World Trade Center (3 WTC), 4 WTC, 5 WTC, 6 WTC, and 7 WTC.  All these buildings were built between 1975 and 1985, with a construction cost of $400 million ($ in 2014 dollars).  The complex was located in New York City's Financial District and contained 13400000 sqft of office space.

American Airlines Flight 11: American Airlines Flight 11 was a domestic passenger flight that was hijacked by five al-Qaeda members on September 11, 2001, as part of the September 11 attacks.  Mohamed Atta deliberately crashed the plane into the North Tower of the World Trade Center in New York City, killing all 92 people aboard and an unknown number in the building's impact zone.  The aircraft involved, a Boeing 767-223ER, registration N334AA, was flying American Airlines' daily scheduled morning transcontinental service from Logan International Airport, in Boston, Massachusetts, to Los Angeles International Airport, in Los Angeles, California.

Bryan Sterling: Bryan Sterling (January 27, 1922 – March 13, 2008) was an authority on the life and work of American political commentator, humorist, and entertainer Will Rogers.  He scripted and co-produced "Will Rogers' USA," a one-man Broadway play about Rogers starring actor James Whitmore, created a daily syndicated newspaper column that featured timely quotations from Rogers' writings, and authored several definitive biographies of Rogers' life including a detailed examination of his death in the Point Barrow, Alaska, crash of an airplane piloted by famed aviator Wiley Post.

Supporting paragraphs: Impending Death American Airlines Flight 11
Answer: Mohamed Atta