DeRay Mckesson, a prominent activist linked to the Black Lives Matter protest movement, filed paperwork Wednesday evening to enter the Democratic primary in the 2016 Baltimore mayoral race. Mckesson is well-known, particularly in protesting the deaths in police custody of Michael Brown in Ferguson, Mo., and Freddie Gray in Baltimore. The activist waited until the final hour before the filing deadline to launch the surprise, long-shot bid, and he expects to release a platform within a week. Mckesson acknowledged that entering the race late would mean he would have some catching up to do.

The election comes at a time when Baltimore is one of the primary anecdotes in the national conversation about the overlay of race, inequality and inner-city public policy. Democratic Mayor Stephanie Rawlings-Blake opted not to run after unrest over Gray’s death, saying she wanted to focus on seeing the city through the trials of six officers charged in the case.