Anita Rose, a mother of six and grandmother of 13, died on Sunday morning at Addenbrooke's Hospital after being found unconscious on a track near the sewage works and railway line off Rectory Lane in Brantham on Wednesday 24 July.
Rose left her house around 05:00 to walk her springer spaniel, Bruce.
A member of the public discovered her unconscious body at approximately 6:25am and called an ambulance.
Suffolk Police have arrested a 45-year-old man on suspicion of murder and a 37-year-old woman from Ipswich on suspicion of handling stolen goods.
Both have been released on bail until 25 October 2024.
Detective Superintendent Mike Brown said: "This is a very serious incident following which Anita has now sadly died of her injuries. The investigation to establish the full circumstances surrounding the offence continues, as do enquiries to establish the cause of death."
Police have recovered Rose's missing mobile phone but are still searching for a pink zip-up jacket she was believed to be wearing before the incident.
Rose's family released a statement through the police, saying, "Our mum was well known and loved in the community. She was brutally taken from us devastatingly too early, and we have been robbed of so much time with her."
Residents can expect an increased police presence in the area over the coming days as investigations continue. Police urge anyone with information, CCTV, or doorbell camera footage to come forward.
Anyone with information should contact Suffolk Police, quoting reference 37/41580/24, or call Crimestoppers anonymously on 0800 555 111.
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Gipping Construction
Based just outside Ipswich, Gipping Construction is an employee-owned construction company that operates in the private and public sectors across East Anglia.
PLMR Genesis
PLMR Genesis is a full-service PR and digital marketing agency based in Ipswich. The team is the East of England flagship for PLMR.
Happiness Club
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Gipping Construction
Based just outside Ipswich, Gipping Construction is an employee-owned construction company that operates in the private and public sectors across East Anglia.
PLMR Genesis
PLMR Genesis is a full-service PR and digital marketing agency based in Ipswich. The team is the East of England flagship for PLMR.