Anybody know if there's any comparable data from any other city? Police-involved shootings going back to 1970?

Anybody know if there's any comparable data from any other city? Police-involved shootings going back to 1970? Asking for a friend. pic.twitter.com/lA3Cvx20dF

— Bad Hombre "so bad for the USA" Moskos (@PeterMoskos) June 9, 2020