Phenom Booter, which triggers a denial-of-service attack that can clear a server of specific users, or all of them, is a hack that had been shopped around forums earlier in this year. Type it into YouTube and you'll see a number of demonstrations. The e-cops were able to trace the attack to the Greater Manchester area and, ultimately, to the unidentified 17-year-old in question. He faces charge of violating the U.K.'s Computer Misuse Act of 1990.
Bit harsh, don't you think?