In this March 26, 2016, file photo, Black Lives Matter activist DeRay Mckesson chats with campaign volunteers in Baltimore. A Louisiana police officer injured when violence broke out over the police killing of a Black man in Baton Rouge in 2016 has grounds to pursue a lawsuit against a protest organizer, Louisiana's Supreme Court said Friday, March 25, 2022. The 6-1 opinion was not a ruling in a case, but an answer to questions posed by a federal appeals court considering whether an officer identified as John Doe, can continue his federal lawsuit against Black Lives Matter activist DeRay McKesson. (AP Photo/Patrick Semansky, File)