Man Charged in Lollapalooza Biting Attack

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General atmosphere and rain during 2014 Lollapalooza Day Three at Grant Park on August 3, 2014 in Chicago, Illinois. 

A 33-year-old man is accused of biting two men in a seemingly random attack as the Arctic Monkeys performed at Chicago's Lollapalooza music festival.

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Cook County State's Attorney's Office spokesman Steve Campbell says Sergio Vicenteno is charged with aggravated battery in the Aug. 1 attack. He has not entered a plea. Vicenteno's attorney, Michael Gillespie, did not return a call Friday morning.

Prosecutors say Vicenteno attacked one man, biting him in the shin. When a friend of the attacked man, Ben Lenet, tried to intervene, Vicenteno bit Lenet's arm. That bite broke Lenet's skin and drew blood.

The 29-year-old Lenet says another friend kicked the attacker, who got up and calmly walked away.

Lenet says he is taking antibiotics and has been tested for hepatitis and HIV.