'William "Billy" Cottrell was such an exceptional student at the University of Chicago that he was described by his professors as something of an eccentric genius. He even won the award for best senior thesis in physics, addressing string theory, which seeks a single unifying way to explain all forces and all forms of matter.

Today the 27-year-old is in jail.

Two years after his 2002 graduation with honors as a double major in physics and math, Cottrell was charged and convicted as one of the nation's first ecoterrorists of the post-Sept. 11 era. He was found guilty of conspiracy and arson in the 2003 firebombings of Hummer and other sport-utility vehicle dealerships in the Los Angeles area to advocate a radical environmentalism. Two conspirators remain at large.

Cottrell is appealing his conviction. One mitigating factor, his supporters argue, is that he is diagnosed with Asperger syndrome, which can make his behavior at times inappropriate.'