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Police in Manchester have launched a manhunt to find a man in connection with the killing of Mike Grimshaw.
Officers are searching for Tyronne Patrick, a 32-year-old from Trafford but who also has links to south Manchester.
The public has been warned not to approach Patrick but to contact police if he is seen.
On 20 July Mike Grimshaw was stabbed in the neck outside of his home in Sale Moor when he confronted a gang who were harassing his fiancée.
A 31-year-old man and a 16-year-old boy were arrested on suspicion of murder and have been bailed pending further enquiries.