April 16, 2012 12:10 pm Emancipation Day Parade The parade marks the 150th anniversary of District of Columbia Emancipation Day, the day slaves were freed in the nation’s capital. NBC4’s Melissa Mollet has more. Local 1:42 Man dies after crashing into White House security barrier 1:11 Woman found shot to death inside car in Landover 2:14 ‘She loved to laugh': Family of 3-year-old shot, killed in DC asks for justice 1:48 DC police search for gunman who shot and killed 3-year-old child 1:11 What to do if you see a black bear