A patient at Riverview Psychiatric Center accused of stabbing an employee is now in jail, facing criminal charges. 47-year-old Mark Murphy is charged with elevated aggravated assault and aggravated assault.Kennebec County District Attorney Maeghan Maloney says over the weekend Murphy stabbed a staff member at the mental health hospital in Augusta several times with a ballpoint pen. She was left with serious injuries. Maloney says Murphy’s actions were intentional and out of anger, not because of a mental illness. Murphy was sent to Riverview more than seven years ago for an assault in York County.He’s due in court Friday.