He took down Yahoo, the world s most popular Web site, and started a rash of attacks on the Internet s biggest companies.
Authorities still don t know for sure who s responsible.
But investigators have been told that he is Coolio. And according to one associate, he wanted to use the power he d amassed over 1,000 so-called zombie computers to cripple the entire Internet. Furthermore, they say, Coolio was seeking to bring down the entire Internet. In part, they say, because Coolio had much more ominous plans. And the FBI won t offer any details about its investigation other than to say it is ongoing.