Social media users posted shocking video. One user's video showed someone apparently performing chest compressions on a shooting victim as another person, seemingly writhing in pain, lay on the ground nearby. People screamed in the background. Another video showed two onlookers chase down and tackle someone, holding that person down until two police officers arrived.
We know this. We're not safe anywhere: not in a school, not in a house of worship, not at a civic celebration, not in New York City, not in Kansas City.
