Two women and a teenage boy arrested on suspicion of murder remain in custody following the death of Peter Richardson from Wythenshawe.
The 51-year-old died in hospital of a stab wound on Thursday, May 21. Police were called to Topfield Road at 12.10am following reports that a man had collapsed.
The victim, who has since been formally identified as Mr Richardson, was taken to hospital where he passed away a short time later.
Detectives investigating Mr Richardson's death believe there was an incident involving Mr Richardson which took place at an address on Greenwood Road a short time before he collapsed.
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