Steven McMyler, 34, was murdered after being kicked in the head on August 6 in the gardens of Wigan Parish Church.
The citizens found the man lying on the ground just before 7.50 pm.
Mr McMyler could not be saved despite all medical efforts, and he died at the scene.
His family said: “Steven was an extremely likeable lad, and everyone who came across him loved him as much as we all did. He was a popular lad, and he lit the room up as soon as he walked in.
“Everybody thought the world of him, as he had a heart of gold.” and continued.
“We can’t believe what has happened, and we are struggling to come to terms with this terrible tragedy.
“As a family, we would appreciate some privacy at this devastating time.
Now, A investigation has been ongoing, and the police officers release some images of a group of people because they think ‘may hold significant information’ about his death.
According to the police officers, the group of men have travelled from the Merseyside to Wigan.
The images show the group of people who were walking on Wallgate just a few moments before Steven was killed.
According to the detectives, the men have just got off the train at Wigan Wallgate station, and at the evening hours was taken the group’s photo at Southport railway station.
And then, they walked together to the church grounds, and the place was that McMyler was found.
Eventually, they left from the gate on the corner of Crawford Street and King Street West.
Up to this time, three men have been arrested -aged 18,19 and 30, because of suspicion of killing Mr McMyler, and also a woman- 18-year-old has been arrested on suspicion of taking part of the crime.
All of the suspicions have been released on bond under investigation.
Anyone who has any information about the men’s identities has to contact police.
Detective Inspector Wes Knights said: “A dedicated portal has been set up for the public to share their information with the investigation team and also to view other assets on there that could lead to further useful evidence coming to light.
“If you recognise the men we are particularly focused on speaking to, or you know any other details can prove significant in our investigation, I urge you to do the right thing and get in touch.” and continued.