Hometown: Poway, Calif., USA
Occupation: Electrical engineer, BAE Systems
Location: Passenger, American Flight 77, Pentagon
"Bob Penninger loved life, always living it to the fullest. He always tried to find humor in any situation. Bob also loved cars. In high school, he was always tinkering with the cars he and his friends owned, fine-tuning them to get more speed. So it seemed only natural that he buy a 1999 electric green Cobra Mustang with thoughts of making it into a show car. He added many Saleen extras including a speedster cover, spoiler and ground effects. He had a supercharger installed, as well as having the car lowered, putting on wider tires and a roll bar. He enjoyed every moment driving and showing this car and won a trophy at every car show he entered." -- Janet Penninger, wife
Source: The Washington Post, AP and washingtonpost.com
The profiles in this feature were written in the months following Sept. 11, 2001.
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A day after the 9/11 attacks a makeshift memorial was created on the Arlington Memorial Cemetery fence. Seven years later, the first 9/11 memorial is opening.