Officers searching for missing 62-year-old Dennis Farnell discovered the body of a man in John Sayer Close, Barking, on Saturday, December 28.
While formal identification has not yet taken place, officers believe the deceased is Mr Farnell. His next-of-kin have been informed and are being supported by specialist officers.
A post-mortem examination took place at Queen’s Hospital on Sunday, December 29. His death is being treated as unexplained at this time.
A number of arrests have been made as part of the investigation.
A 53-year-old man and a 47-year-old woman were arrested on Tuesday, December 24 on suspicion of robbery and kidnap. They have been released under investigation pending further enquiries.
A 24-year-old man and a 20-year-old woman were arrested on Tuesday, December 24 on suspicion of kidnap. They have both been bailed to return on a date in late January.