Colin Kaepernick started out taking a knee during the national anthem to protest police brutality, but his activism has since expanded to encompass a wide range of leftist causes, including a group named after a convicted cop-killer. The Colin Kaepernick Foundation donated in April $25,000 to Assata’s Daughters, a Chicago “direct action” resistance organization honoring Assata Shakur, who escaped prison and fled to Cuba after being found guilty in the 1973 murder of Officer Werner Foerster. The grant includes $2,500 for CopWatch, a program that trains volunteers to follow and video police, and $15,000 for teen training, part of the...