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Detectives who launched a murder investigation into the death of a Dartford man have now ruled out any "third-party involvement".
Officers were called to a property in Darenth Hill on May 26 after a 27-year-old was said to have suffered fatal stab wounds.
A 63-year-old man, also from the town, was arrested in connection with his death.
However, a post-mortem examination could not conclusively say the fatal wound was down to a third party, but an investigation was launched.
The man was later released on bail, pending further inquiries, but it has since been confirmed he will face no criminal charges.
A spokesman for the force said: "Kent Police was called to a private address in Darenth Hill at 10.45pm following a report a 27-year-old man had sustained a serious injury that led to his death shortly afterwards.
"Detectives from the Kent and Essex Serious Crime Directorate carried out a full and thorough investigation including a review of all available CCTV and forensic evidence, and are now satisfied there was no third-party involvement in the man’s death."
A report will now be prepared for the coroner.