Organist Alan Greaves murder: Police in CCTV appeal
Police have released CCTV footage of two men they want to speak to about the murder of a church organist on Christmas Eve.
Alan Greaves, 68, of High Green, Sheffield, died three days after he was attacked while walking to St Saviour's Church for midnight mass.
A £10,000 reward has been offered by Crimestoppers for information leading to the conviction of his killer.
South Yorkshire Police showed the CCTV footage at a news conference.
'Not stopped crying'
Det Supt Matt Fenwick urged the men in the footage, or anyone who knows them, to come forward.
He said the footage was captured on camera near the scene shortly before the incident.
Mr Greaves, a father of four, was found with a head injury near his home on Greengate Lane at about 23:15 GMT on 24 December.
Two men arrested on suspicion of murder have been released on police bail while inquiries continue.
BBC Look North's John Cundy said he understood they were not the two men seen in the CCTV.
Mr Fenwick said there appeared to have been no motive for the attack.
"Alan retains all his property," he said.
"Nothing is missing and my inquiry remains very open in relation to identifying a possible motive for this attack."
The officer said there were more than 50 officers working on the case and urged the two people in the footage to contact police.
"I am absolutely convinced that someone will look at this footage and know who these people are - a mum, a dad, a brother, a sister, another relative, a close friend," he said.
"Alan Greaves deserves your help. Alan Greaves's family deserves your help. Please make that call."
At a service following her husband's death, Mr Greaves's wife, Maureen, said she had wept over the "evil that has been done".
She said: "I have not stopped crying for him and I know you have not stopped either."