Andy Peters, 21, was freed after the judge upheld a no-case submission made by his attorney Latchmie Rahamat.
Charles, a student of the Covent Garden Secondary School, was stabbed while attending a concert in the Nursery School compound in that village.
The teenager of Grove, East Bank Demerara, was there with other friends when he was stabbed to the chest.
There were several theories on what fuelled the misunderstanding.
