Two more people have been arrested after a man was found battered to death under a bridge in Plumstead.
A post-mortem revealed the Lithuanian national died of blunt force trauma to the head.
It is thought Mr Jarusevicius lived under the flyover with a group of men.
Officers are trying to piece together his last movements and believe he was in the Mount Pleasant Place area the night before he died.
This morning (September 29) two more men aged 41 and 50 were arrested on suspicion of murder.
They are in custody at a south London police station.
This brings the total number of people arrested in connection with the murder to seven.
On Saturday three men aged 35, 45 and 46 were arrested on suspicion of murder, and on Monday (September 28) a 29-year-old man and a woman aged 38 were also arrested on the same charge.
MORE TOP STORIES All have been bailed until November.
Detective Chief Inspector Will Reynolds, of the Homicide and Major Crime Command, leads the investigation, said: “Did you see Tadas in any of these areas during the evening of 22 September? Was he in the company of other people? Did you see or hear anything suspicious, like a disturbance, in the area beneath the flyover on the evening of 22 September or the morning of 23 September?
"Any information you have, no matter how insignificant, could prove to be vital in finding out who attacked and killed this man."
Anyone with information should call the incident room on 020 8721 4205, 101 or to remain anonymous contact Crimestoppers on 0800 555 111 or via crimestoppers-uk.org Enquiries continue.
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