Alton Sterling was shot and killed by police officers outside a convenience store in Baton Rouge, La., on Tuesday morning. Philando Castile was killed in Falcon Heights, Minn., during a traffic stop on Wednesday evening.

MORE: Sports world reacting to tragedies

Colin Kaepernick compared Sterling’s death to lynchings.  

Ricky Jean Francois posted one of the most chilling photos — An American flag with streaks of blood that form silhouettes of people being lynched.  

Following Castile’s death on Wednesday evening, even more athletes weighed in with disgust. A woman in the car with Castile broadcasted the aftermath of the shooting to Facebook Live, and it has since made its way to every corner of the internet.