Kristina Knox, a 25-year-old child development teacher from Maryland, cried for days after watching video footage of George Floyd, a 46-year-old black man in Minneapolis who died after a police officer kneeled on his neck while Floyd gasped for air.
She had posted about high-profile episodes of police brutality wielded against black Americans on her social media accounts before she attended her first protest this week — spurred, in part, by hoping to create a better world for her 2-year-old son.
"I'm over being walked over, mentally, physically, emotionally," Knox said at a protest outside the U.S. Capitol. "Enough is enough."