>>515045449
I think the text reads "Black lives matter", then a list of names, then "I can't breathe" with a black power fist. I assume the names are the names of dead black people, probably Trayvon, Brionna, George, etc. It's a plaque of remembrance for dead black people and an oath of solidarity. I think she sat in front of her murderer on purpose because she thought it was the right thing to do.