Four Arrested in Baltimore May Day RallyMay 2, 2017 BALTIMORE (WBFF) – Baltimore police announced they arrested four people in a May Day Rally that began at McKeldin Square downtown. The rally joined those around the country and the world Monday. According to police, no other issues occurred. READ MORE HERE: http://foxbaltimore.com/news/local/four-arrested-in-baltimore-may-day-rally