Since George Floyd, a black man, was killed by police in Minneapolis last week, there has been nationwide outrage, with more than 250 protests, rallies and vigils across the country. NBC News wants to hear from black men and women about this moment in history: Why are you walking for George Floyd? What does it mean to you to rally? And what motivated you to join the protests? Tell us in the form below and please submit a photo. We’ll select a sampling of the responses and publish them here.