12-vuotias Alma Tritshke katosi ollessaan asioimassa tätinsä puolesta Melbournen kaupungilla joulukuun lopulla vuonna 1921. Hänen alaston

Lähteet:

https://murderpedia.org/male.R/r/ross-colin-campbell.htm

http://www.justicedenied.org/issue/issue_33/gun_alley_review_jd-issue-33.pdf

https://www.findagrave.com/memorial/66219831/nell-alma-tirtschke

https://en.wikipedia.org/wiki/Colin_Campbell_Ross

https://www.injustice.law/2021/07/24/colin-campbell-ross/

https://www.museumoflost.com/who-killed-alma-tirtschke/

https://darkstories.com.au/3d-flip-book/the-murder-of-alma-tirtschke-by-madame-ghurka/

https://www.gutenberg.org/files/62861/62861-h/62861-h.htm

https://www.injustice.law/colin-ross/