Burrell died at the Prince of Wales Hospital at Randwick, whilst still in prison custody on 4 August 2016, aged 63, from lung and liver cancer.
Burrell was sentenced to life imprisonment for murder and 16 years' jail for the kidnapping charge.
[7] Dorothy Davis was a 74-year-old wealthy widow living in Lurline Bay, Sydney.
Burrell was charged with Davis's murder and later found guilty by a jury, stating financial gain as a motive.
[10] In March 2022, author Mark Tedeschi released a book, Missing, Presumed Dead, on the murders.