It’s been a heartbreaking and infuriating week when it comes to police violence. Two black men were shot and killed by police—first Alton Sterling in Louisiana, followed by Philando Castile in Minnesota. Then last night, five police officers were killed, and 12 shot in total during a protest in Dallas, Texas. I think we all have heavy hearts. Beyoncé called for a moment of silence at her Formation Tour concert last night, and penned a powerful open letter sharing her frustrations, feelings, and a call to action. Check it out after the jump.