The arrested son-in-law of murdered Weybread couple Peter and Sylvia Stuart now faces no further action, police confirmed on Wednesday.
Steve Paxman, 61, was arrested in connection with the murder in Weybread on June 5. He had been released on bail until August 3 while police investigations continued.
Detectives said at this stage of the investigation there is no evidence linking him with the murders.
The Stuarts were reported missing on June 3. Later that day Mr Stuart's body was found 50ft from his home. He had been stabbed multiple times.
A judgment on the extradition case against the suspected murder suspect Ali Qazimaj is due to be made on Monday.
The 42-year-old is currently being held in a Luxembourg jail after he was detained on a European Arrest Warrant nearly two weeks ago.
Qazimaj made an unsuccessful application for bail on Monday.
A lawyer from the Luxembourg prosecutor's office also laid a petition in front of the Chamber of Council outlining the case for Qazimaj's extradition.
A judgment is expected on July 4.
Police are continuing to carry out work to try to locate Mrs Stuart.
•Anyone with information is asked to call Suffolk Police on 01473 782000
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