An 18-year-old man has pleaded not guilty to second degree murder charges in connection with the stabbing death of an Oceanside High School student earlier this week.
Police say Tyler Flach stabbed 16-year-old Khaseen Morris once in the chest Monday afternoon during a parking lot brawl. He died later that night.
Nassau County Police Commissioner Patrick Ryder says they have reviewed at least one video recording of the fight. He asked anyone with information to come forward.