Alexandria, Virginia (CNN) -- An American-born man accused of posting an online attack against the creators of the animated TV series "South Park" due to a depiction of the Prophet Mohammed agreed to plead guilty Wednesday to providing material support to terrorists and other charges.
Under the agreement announced in federal court, Zachary Chesser, 20, also pleaded guilty to charges of communicating threats and soliciting crimes of violence.
The three charges carry a total maximum prison sentence of 30 years, and U.S. District Judge Liam O'Grady told Wednesday's court hearing that Chesser's defense agreed to a sentence of at least 20 years for acts "intended to promote a federal crime of terrorism".
O'Grady accepted the plea agreement and declared Chesser guilty as charged, setting the sentencing for February 25, 2011.
Chesser, dressed in a green prison jumpsuit with the word "prisoner" stenciled on the back, answered questions from the judge but made no statement. His once-long hair had been cut short.
Michael Nachmanoff, Chesser's federal public defender, said the case was different from other recent terrorism cases.
CNN
