The victim of a fatal stabbing at a Birmingham tram stop has been named as 57-year-old father Anthony Banting.
Mr Banting, from Sparkhill, was found dead on a pathway leading from the Soho Benson Road tram stop in the Winson Green area.
He was repeatedly stabbed after getting off a tram alone at about 16.30 BST on Friday.
Police have released CCTV images of a man they are seeking who may have "key information" about the incident.
Det Ch Insp Paul Langley said it is thought Mr Banting, who was on his way to meet his son in a nearby pub, did not know his attacker and that there is no clear motive behind it.
He added it was obviously a "huge shock" to Mr Banting's family.
"A man - a father - was stolen from them on Friday evening and we will not stop until we have found the person responsible," he said.
Detectives want to trace a young black man wearing a dark jacket with the hood up who was spotted on CCTV getting off the tram alone.
Police believe a number of people were in the area, returning from work, at the time and have also asked two Asian women seen on CCTV in the area to come forward.
A 31-year-old man arrested on Sunday has been released.
There will be no further action taken against him, police said.
Mr Langley added: "I'm still also really keen to speak with anyone who was in the Benson Road area between 16.00 BST and 17.00 BST on Friday. If you haven't already come forward to police, please do so."
Mr Banting's body was found about 15 yards from Benson Road and just a few hundred yards from Benson Community School.
- 31 March 2017