Clarence Edwards stabbing: Two more men arrested over Manchester killing
Police investigating the fatal stabbing of a man outside a Manchester nightclub have made a further two arrests.
Clarence Edwards, 26, was found with stab wounds following a disturbance on Charles Street outside the RBase club in the early hours of Sunday.
Mr Edwards was taken to hospital but later died of his injuries.
Two men, aged 22 and 26, have been arrested on suspicion of murder and remain in police custody.
Two other men who were also arrested on suspicion of murder, aged 26 and 37, have been bailed pending further enquiries.
'Wall of silence'
Det Ch Insp Ian Crewe, of Greater Manchester Police, said officers had been met with a "wall of silence" following an appeal for witnesses to come forward.
"This is a complex investigation, but we know there were many people present and many potential witnesses to Clarence's murder," he said.
"These people are vitally important to our investigation. Although we have arrested four people, we need more information and we still need people to come forward and tell us what they know."
The latest arrests came after Mr Edwards' family paid tribute to their "beautiful son".
Mr Edwards was jailed for his role in the 2011 death of John Lee Barrett.
One of 12 men jailed over that death, he was convicted of violent disorder and sentenced to two-and-a-half years in March 2013.