An Australian mom is seeking a pardon decades after being convicted of killing her 4 children. She says science proves her innocence.

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Kathleen Folbigg appears via video link during a convictions inquiry at the NSW Coroners Court in Sydney, Australia on May 1, 2019. Nearly two decades after Folbigg was convicted of killing her four children, dozens of scientists are backing the claim that they may have died of natural causes.
Kathleen Folbigg appears via video link during a convictions inquiry at the NSW Coroners Court in Sydney, Australia on May 1, 2019. Nearly two decades after Folbigg was convicted of killing her four children, dozens of scientists are backing the claim that they may have died of natural causes. Joel Carrett/AAP Image via AP
  • An Australian woman convicted of killing her four children is seeking a pardon.

  • Kathleen Folbigg says all four of her children died of natural causes in the 1980s and 1990s.

  • More than 90 scientists have signed her petition asking for a pardon.

  • Visit Insider's homepage for more stories.

Nearly two decades after an Australian mother who was convicted of killing her four young children, the woman is asking for a pardon.

Kathleen Folbigg was sentenced to 30 years in prison after she was convicted on three counts of murder and one count of manslaughter in 2003.

Prosecutors say Folbigg smothered all four of her children in separate incidents spanning the 1980s and 1990s.

But Folbigg has argued that her children died of natural causes, and 90 scientists, medical practitioners, and other related professionals have signed her petition to the New South Wales state governor asking for a pardon, the Associated Press reported.

Folbigg was the first person on the scene of each of her children's deaths.

Her first child, Caleb, died at 19 days old in 1989. Her second, Patrick, died at eight months old in 1991. Her third, Sarah, died at 10 months old in 1993. Her fourth, Laura, died at 19 months old in 1999.

But Folbigg said natural causes can explain each death - she said Laura had myocarditis, a potentially fatal inflammation of a heart wall; Patrick had epilepsy and he died after his airway became obstructed due to an infection and a seizure; and Caleb and Sarah's deaths were a result of sudden death syndrome.

Further research last year found that Folbigg's daughters had a genetic mutation that causes abnormal heartbeats, and that Patrick had a variant of the gene, AP reported.

Read the original article on Insider