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Mandatory Credit: Photo by Shutterstock (12944357q) Bail hearing of Dave Chappelle attacker Isaiah Lee Bail hearing for Dave Chappelle attacker Isaiah Lee, Los Angeles, California, USA - 10 May 2022

The man who allegedly attackedDave Chappelleonstage during his set at the Netflix Is a Joke Festival earlier in May is facing an attempted murder charge unrelated to the comedy fest fiasco.

Los Angeles County District Attorney George Gascón announced on Thursday that his office has filed an attempted murder charge against Isaiah Lee for allegedly stabbing his roommate in December.

Isaiah Lee, 23, faces one count of attempted murder, according to anews releasefrom Gascón.

Lee is charged with stabbing his roommate during a fight at a transitional housing apartment on December 2. Because of the amount of media attention stemming from the alleged attack on Chappelle, “the victim recently identified Lee as the person who committed the assault he had previously reported to police.”

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Lee pleaded not guilty to the charge on Thursday. His attorney, Chelsea Padilla, did not immediately respond to PEOPLE’s request for comment.

PEOPLE has reached out to Chappelle’s rep for comment but did not immediately hear back.

While performing a set at the Hollywood Bowl in Los Angeles, Chappelle, 48,was knocked to the groundafter a man in a black hoodie rushed the stage, PEOPLE confirmed.

RELATED VIDEO: Dave Chappelle Attacked on Stage During Netflix Is a Joke Festival in Los Angeles

Police initially saidthat Lee would be charged with assault with a deadly weapon – he was allegedly carrying a “replica handgun-slash-knife” – which is a felony, but on May 5, a Los Angeles County District Attorney’s Office spokesperson issued a statement to PEOPLE saying, in part, that the office “has referred the case to the Los Angeles City Attorney’s Office for misdemeanor filing consideration.”

Hours after the case was referred, L.A. City Attorney Mike Feuerannounced new chargesagainst Lee.

“The suspect allegedly was carrying a weapon,” said Feuer of the “replica handgun with a knife.”

“This alleged attack has got to have consequences, and this afternoon, my office has filed charges alleging battery, possession of a weapon with the intent to assault, and charges relating to interfering with a performance,” he added."

source: people.com