Two men arrested in connection with the murder of Catholic schoolboy Thomas Devlin in Belfast were tonight released without charge.
The 15-year-old was stabbed as he walked along the city's Somerton Road with two friends after buying sweets at a garage.
Detectives detained one man on Tuesday night while the second was taken into custody yesterday morning.
But a police spokeswoman tonight confirmed the men, who were arrested in north Belfast, had been released.
Thomas was stabbed five times in the back during a motiveless attack on August 10.
One friend, aged 18, was injured in the attack but a second, aged 16, managed to escape.
The murder sent shockwaves through the affluent Somerton Road area of north Belfast where he lived, which had largely escaped the violence of neighbouring areas.
The teenager's parents, Jim and Penny, were joined by dozens of Belfast Royal Academy pupils for his funeral service last month.
Father Sean Emerson told mourners that the brutal and senseless murder of the talented musician had forced people to question what was wrong with society in Northern Ireland.