A second man has been arrested over the murder of Anthony Littler - who was killed as he left a London Underground station 39 years ago.
Mr Littler, 45, was killed after leaving East Finchley Tube Station around 12.15am on May 1, 1984.
He was found with "significant" head injuries in an alleyway close to East End Road, behind the station, and was pronounced dead at the scene.
Scotland Yard on Sunday confirmed they had arrested a 58-year-old man on suspicion of murder.
On Thursday, they confirmed a second man, aged 54, has also been arrested on suspicion of murder.
Both men have been bailed to a date in January.
An executive officer at Customs and Excise, Mr Littler was single and lived a short distance from East Finchley station, in Leslie Road.Scotland Yard believes he was murdered in a "random attack", but despite a lengthy extensive investigation, no one has been charged. The motive for the murder also remains unknown.
The two arrests come shortly after the Met launched a fresh appeal for information regarding the decades-old cold case.
Detectives are continuing to appeal for information in connection with their probe.
Detective Chief Inspector Neil John, who is leading the investigation, said: “These arrests come just days after our latest appeal, and I would like to thank everyone who has already come forward with information.
"However, we still need to speak with anyone who may have witnessed the events leading up to Anthony's murder.”