Nearly a month on from the death of Wes Brown, two men arrested on suspicion of drugs offences remain on police bail.
Mr Brown, 40 was found with serious stab wounds in a garden in Humber Walk, Corby, in the early hours of Saturday, April 11.
Initially, officers launched a murder investigation, but after a review of CCTV inside a property in Derwent Walk, it is now believed that Mr Brown may have been accidentally injured during the incident.
Two men were arrested on suspicion of drugs offences and officers confirmed today no charges have been laid.
Another man, Jamie Magee, 30, who is a member of Mr Brown's extended family, is due to make a crown court appearance this week. He is being held in custody on suspicion of a related robbery offence.