I was under the impression that this is more likely related to the reduction in lead in the air. At first glance that seems plausible. See murders by year[1] an

I was under the impression that this is more likely related to the reduction in lead in the air. At first glance that seems plausible. See murders by year[1] and the presence of lead[2], the timelines seem to match. [1] https://en.wikipedia.org/wiki/Crime_in_New_York_City#Murders_by_year https://en.wikipedia.org/wiki/Crime_in_New_York_City#Murders... [2] https://www.forbes.com/sites/alexknapp/2013/01/03/how-lead-caused-americas-violent-crime-epidemic/ https://www.forbes.com/sites/alexknapp/2013/01/03/how-lead-c...