Indian-origin nurse Jacintha Saldanha, who took a prank call from an Australian radio station and divulged medical information about pregnant Duchess of Cambridge Kate Middleton, had left a suicide note for her family, reports said on Wednesday.
According to reports, the nurse, who was found dead following the incident left the note for her husband Ben Barboza and children Junal and Lisha.
Saldanha´s family demanded answer from the King Edward VII Hospital saying they still believe there were "unexplained circumstances" behind the death.
Labour MP Keith Vaz told media: "What the family needs are the full facts. There are unexplained circumstances. The family want to know everything."
"The hospital needs to be more proactive, a full inquiry is needed and the family needs to be included in that," Vaz said.
He, however, did not reveal the content of the note.
Meanwhile, the Australian radio station, 2DayFM, that made the prank call has said it will give at least 500,000 Australian dollars (Rs. 2.7 crores) in order to help the family of the nurse.
Saldanha´s brother said she died of ´shame´ following the incident.
Saldanha´s brother Naveen told Daily Mail that his devoutly Catholic sister was a 'proper and righteous person'.
"She would have been 'devastated' at unwittingly assisting a colleague in breaching medical confidentiality over the condition of the Duchess of Cambridge," the report quoting Naveen said.
"She would have felt much shame about the incident," he said.
The Australian radio hosts - Mel Greig and Michael Christian - whose prank on nurse Saldanha is suspected to have resulted in her killing herself have said that they were "gutted and heartbroken" over the death of the woman.
The Indian-origin nurse was found dead on Friday.
After convincing 46-year-old Saldanha, who answered the phone, that they were Queen Elizabeth and Prince Charles, the two Australian RJs then tricked another nurse into disclosing details of Kate, who had been admitted with acute morning sickness.
The call was broadcast in Australia and consequently, it went out around the world.
Saldanha, a mother of two, reportedly committed suicide.
The police, however, refused to divulge details.
In an interview for Channel Nine, radio presenters Greig and Christian wept as they said "not a minute goes by where we don´t think about her family".
The incident had earlier evoked a response from Australian Prime Minister Julia Gillard, who called it a "terrible tragedy".
The two radio presenters were taken off air indefinitely after the incident.