If you haven't checked out this NPR article, its a good one that gets at some of the racial disparity between how mass shootings are publicly described and identified.
"We have templates that we superimpose on Chicago and places like it. These templates distort the ways violence comes to bear on individual lives, obscure the patterns that come with that violence, and shape . These are each human-scale tragedies worthy of human-scale consideration. To really understand what happened in Chicago last weekend, we have to be able both to see those shootings as mass shootings, and to see the lives they shatter."