Woodstock '99 souvenir-stand worker Timothy Weeden was sentenced to six years in prison Wednesday for sexually assaulting a 15-year-old girl during the riot that ended the festival.

His lawyer, Sanford Meltzer, said Weeden had been under the influence of alcohol when the assault occurred.

"This is the definition of the word 'tragedy'," the lawyer said. "The guy had too much to drink and takes an opportunity he should not have taken. But the girl should not have presented the opportunity either."

A prison guard in Rome, N.Y., where the ill-fated festival was held, Weeden was arrested July 26 behind a convenience store near the concert grounds. Police said Weeden forced the girl to perform oral sex on him.

In January he pleaded guilty to one count of sodomy in exchange for authorities dropping additional sodomy, sexual-assault and child-endangerment charges.

District Attorney Michael Arcuri could not be reached for comment late Wednesday.

Weeden will be evaluated before authorities decide where he will spend his prison term, Meltzer said. Weeden apologized in Oneida County Court before being led from the courtroom, the lawyer said.

Several alleged sexual assaults at Woodstock '99 came to light following the concert. State police continue to investigate eight sex crimes, including two rapes, said to have taken place in mosh pits.

The July 23–25 festival was one of last year's largest concerts, with performances by such major bands as Metallica, Limp Bizkit, Kid Rock, Sheryl Crow, DMX, Jewel and the Red Hot Chili Peppers. The Chili Peppers' performance of Jimi Hendrix's "Fire" (RealAudio excerpt of Chili Peppers version ), which closed the show as fires began spreading uncontrollably on the concert grounds, is included on the live album Woodstock 99.