A 27-year-old man arrested on suspicion of murdering a young woman has been released with no further action, police said.
Levi Davis, 25, died following an incident in Wellingborough Road, Rushden, at around 8.30pm on Saturday.
A 27-year-old man was initially arrested on suspicion of her murder.
But Northamptonshire Police said they have now released the man after reviewing the evidence - including what they have called "high-quality CCTV footage which shows the entire incident from start to finish".
Officers described the investigation as "exceptionally fast-past" and said the decision to take no further action against the 27-year-old man had been taken following consultation with the Crown Prosecution Service.
"I know there is an extensive amount of interest and speculation surrounding this case and I know this decision may leave many people confused, however I want to reassure the community in Rushden that this has been an exceptionally thorough investigation involving very experienced detectives from across the region.
Jake Dean Swords, aged 27, of Rushden, has been charged with the attempted murder of another 27-year-old man.
Swords is next due to appear at Northampton Crown Court in January. Northamptonshire Police is not seeking anyone else in connection with this case.