FBI Agent Dies of Brain Cancer Linked to 9/11 Attack on Pentagon

For 10 weeks after 9/11, FBI Special Agent Melissa S. Morrow spent hours upon hours sifting through the toxic terrorist crash site at the Pentagon.

Fifteen years later, she was diagnosed with brain cancer. Morrow, 48, died Thursday in what federal officials called a line-of-duty death due to her exposure to the poisons unleashed by the fiery airliner crash in the nation's capital, reports the New York Daily News .

"Strength & courage come in many forms; most give some, some gave all," tweeted her colleagues in the Kansas City field office. "(Special Agent) Morrow will be remembered most as a warrior. She will forever be considered a hero."