Mattelli's death from a Black Audience perspective (spoilers)
I saw Across 110th Street as a preteen back in 1973. It was an all black theater and was the opening film shown before "Wattstax"- which is the movie me and my family were really there to see.
We walked in probably three-quarters of the way into "Across 110th Street". So obviously I really didn't have much attachment to what was happening on screen.
I vividly remember that D'Salvio's death was greeted with applause and cheers. Again since we had come in so late in the picture, I didn't understand why. In contrast when Mattelli was shot at end, the theater was very, very quite.
Usually in that same theater there's at least some chatter always going on. But the end was very silent. It seemed like the audience felt the same kind of ambivalence toward Mattelli that was the same sort of ambivalence of Mattelli's character. You just don't know how to feel about him.