The man who attacked NCIS star Pauley Perrette last week is looking at some serious jail time.

45-year-old David Merck was arrested last week for felony assault, and is now being charged with one count of criminal threat and one count of false imprisonment by violence, both felonies.

The Los Angeles district attorney says that if Merck could face a maximum of four years in prison if convicted of both charges. He is currently being held behind bars on $60,000 bail.

Source: Eonline.com

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