The woman accused of running down a Good Samaritan in Lexington says she's not guilty.
Shamecko Howard is accused of assault in an incident that left a man in fighting for his life.
Police say Howard was involved in an argument at a gas station on Broadway at Angliana when a man named Christopher Mayfield tried to break it up.
According to police, Howard then ran down Mayfield with her car.
He's at UK Hospital.
