With the development of stringent environmental legislations and an increase in public awareness regarding the environmental impacts of various developmental activities; environmental forensics has been increasingly utilized for the investigation of an abundant variety of pollution that have been by chance or intentionally liberated into the environment, and to understand their emergence and help the courts in attributing responsibility. Pollution of air has wide-reaching impacts on the environment. Apart from this, in scientific literature air pollution-related numerous adverse effects on human health and well-being, and mortality due to air pollution is becoming well established. Though air pollution as an invisible killer is well recognized in various scientific studies, the issue is not referred to in any legal proceedings. But recently in the death case of Ella Kissi Debrah a nine-year-old who died on 15th February 2013 in London, UK, the judgment given South London Inner Coroner’s Court attracted attention all over the world. The remarkable judgment for Ella’s death case came on 16th December 2020 mentioning air pollution as the cause of an individual’s death first time in any legal proceeding. In this article, the interesting fact file of the case is discussed from the perspective of air pollution-related environmental forensics with emphasis on the need for the development of air pollution-related environmental forensics and associated challenges. Other than that, this article provides an overview of the implications of the case with respect to the UK, children as most vulnerable to air pollution, development of air pollution-related environmental forensics, and how to alleviate the issue globally. The article also discusses the case with an Indian perspective and various mitigative measures.