A 30-year-old man from Northampton has been arrested on suspicion of murder in connection with the investigation of a body that was discovered in Billing Brook Road, Northampton in January.
A 37-year-old man, from Northampton, was also interviewed in connection with the death of Adeyemi Olugbuyi.
The latest developments this week, come three months after the body of Adeyemi Olugbuyi was discovered in undergrowth in Billing Brook Road and a murder investigation was launched.
This follows two earlier arrests on 26 February, when two men were also arrested on suspicion of murder and currently remain on police bail.
Officers continue to try to establish the circumstances which led to the death of 32-year-old Adeyemi Olugbuyi, who was last seen in that area in September 2013.
Anyone with any information is asked to contact police.