Two adult males have been arrested on suspicion of the murder of Wisbech pensioner Una Crown.
Detectives investigating the killing of 86-year-old Una Crown, arrested a 40-year-old man in March and a 36-year-old man in Wisbech at 8am on Tuesday 17th June 2014.
The two suspects are being held in Peterborough at Thorpe Wood Police Station.
Officers are now carrying out searches at several addresses in March and Wisbech.
The arrests come a month after the investigation was re-launched with a fresh team of detectives from the Bedfordshire, Cambridgeshire and Hertfordshire Combined Major Crime Unit.
The renewed appeal and a BBC Crimewatch reconstruction led to several people coming forward with information.
Mrs Crown was last seen alive on Friday, January 11th, last year, but had spoken to a friend by telephone at about 5pm on the Saturday. Her body was discovered by a family member at her home in Magazine Lane, the following morning.
She had been repeatedly stabbed, and then set on fire in an apparent attempt to disguise her injuries and destroy evidence.
Detective Chief Inspector Sharn Basra said: "We have really been encouraged by the response from the public so far.
"We believe there are people out there with information who we haven't spoken to and I would urge them to call police."
A £10,000 Crimestoppers reward is on offer for information which leads to the arrest and conviction of those responsible for the murder.
Anyone with any information should call police on 01707 355666 or Crimestoppers, anonymously, on 0800 555111.
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