A single person brave enough to think against crowds could have STOPped this atrocity from happening.
Reminds me of how Mahatma Gandhi was attacked in South Africa by a group of predominantly white-males, was literally being beaten to death, when just one white-female STOPped this atrocity from happening (source: Gandhi the Man - https://www.amazon.com/Gandhi-Man-Changed-Himself-Change/dp/...).
Most of us are too afraid to stop atrocities (Ex: Recently Muslims getting killed in Delhi while Modi was adulating Trump). But a few who do could may help save humanity.