By April 1953, four of Caroline Grills’s relatives had turned up dead in similar circumstances and even more of her family members were still getting sick. It was under this aura of unnerving uncertainty that John Downey, the son-in-law of one of the recently deceased, stumbled upon a newspaper article about Yvonne Fletcher, the first Australian found guilty of murder by thallium poisoning. So, when John saw Aunty Carrie slipping something into his mother-in-law’s tea, he decided it was time to take action.Sources:

https://www.dailytelegraph.com.au/news/nsw/serial-killer-caroline-grills-served-rat-poison-to-her-relatives/news-story/d4bc91eecf8ff0d85050cd38ecc0737d

https://adb.anu.edu.au/biography/grills-caroline-10371

https://trove.nla.gov.au/newspaper/article/277828549

https://trove.nla.gov.au/newspaper/article/280482217

https://trove.nla.gov.au/newspaper/article/48927134

https://www.smh.com.au/entertainment/tv-and-radio/recipe-for-murder-the-poisoners-tales-20110520-1evcj.html

https://mhnsw.au/whats-on/exhibitions/crimes-passion/

https://vernon.mhnsw.au/objects/54282/photograph

https://trove.nla.gov.au/newspaper/article/280471787

https://trove.nla.gov.au/newspaper/article/249257539

https://trove.nla.gov.au/newspaper/article/69484978

https://trove.nla.gov.au/newspaper/article/96400776

https://trove.nla.gov.au/newspaper/article/2895015

https://trove.nla.gov.au/newspaper/article/99091033

https://trove.nla.gov.au/newspaper/article/275036074

https://www.neighbourhoodmedia.com.au/post/death-in-a-teacup

https://dictionaryofsydney.org/media/67208

https://darkstories.com.au/tag/caroline-grills/

https://trove.nla.gov.au/newspaper/article/96533590

https://trove.nla.gov.au/newspaper/article/18283164

https://search.informit.org/doi/pdf/10.3316/informit.304978805990535?__cf_chl_tk=.sV.wTn.Gy19VvLQOW_FObWDlukKR_HYhFgFgtnQQBk-1791301423-1.0.1.1-a4T7J2wmbgulPjV2SLjxc6DfmMl_VnVWNzZsB79p3T4

https://www.mayoclinic.org/diseases-conditions/peritonitis/symptoms-causes/syc-20376247