Two London teenagers were arrested on Friday on suspicion of murdering 17-year-old Jesse Nwokejiobi in Cambridge.
Police later revealed both boys were released on bail after 48 hours in custody to return to Parkside Police Station on 26 February.
Officers from Cambridgeshire’s Major Crime Unit arrested the two 16-year-old boys on suspicion of murder at addresses in South London.
They were taken into custody in Croydon and brought back to Cambridgeshire for questioning.
Three further teenage boys arrested on suspicion of murder have been released on bail.
A post-mortem examination has confirmed 17-year-old Jesse died after being stabbed following an attack in Cambridge on Saturday, 19 November.
Jesse’s father, Henry Nwokejiobi, has paid tribute to his son.
“Jesse was a good son and at home he was very creative and loving,” he said.
“He made jokes, cooked a lot, and helped with the chores. He was a quick learner and did very well at school. He did really well with his GCSEs, and we all hoped he would become a medical doctor.
“I miss him terribly. I will love him forever.”
Anyone with information is urged to pass it to the Major Crime Unit online via the Major Incident Public Portal. Anyone without internet access should call 101 and quote Operation Helix.