Original sentence: According to an article in the Age newspaper, Gunaratna happened to fill out the need for information on Al Qaeda when the demand for explanations and background exploded in 2001, without having any special expertise on this area
Edited sentence: According to an article in the Age newspaper, he simply happened to fill out the need for information on Al Qaeda when the demand for explanations and background exploded in 2001, without having any special expertise on this area.Gunaratna has been accused of being overly apocalyptic in his visions on Al Qaeda and lacking in his academic credentials