Recent attempts by economists to identify and quantify the effect of social stigma on asset value have often been stymied by confounding mechanisms. I use the unique circumstances surrounding the 1999 Columbine Shooting to estimate the effect of social stigma on asset value. Using a difference‐in‐differences model with property fixed effects, I find the immediate effect of stigma from the Columbine Shooting is 5.7% of a property's value after one year. This implies a $13 million loss from property sales in the year 2000 alone. The results are robust to numerous specifications and synthetic control placebo tests. This suggests that social stigma plays a role in consumer preferences.