The March for Our Lives came as cellphone video has surfaced of one of the latest fatal shootings in the United States: a Harris County sheriff’s deputy killing a 34-year-old unarmed African-American man named Danny Ray Thomas in Houston. The cellphone video, obtained by the Houston Chronicle, shows the man wandering around the street with his pants at his ankles, appearing distressed and mumbling to himself. Family members say he has been suffering from depression since two of his children were killed in 2016. The deputy orders the man to stop, and then, as a passing car briefly obscures the video, the deputy fires one fatal shot, killing him.