Watch One Tree Hill Season 4 Episode 16 online via TV Fanatic with over 6 options to watch the One Tree Hill S4E16 full episode. Affiliates with free and paid streaming include iTunes, Vudu, YouTube Purchase, Google Play, Hulu Plus, and Verizon On Demand.
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It's Prom night, but things start to go awry as Lucas discovers who was the person in the hallway when Keith was killed, and Psycho Derek...