Before Colin Kaepernick spoke to reporters Sunday about “police brutality” he appeared to make a silent statement with his socks. On Aug. 10, during the 49ers’ only public practice of training camp at Kezar Stadium, Kaepernick sported socks that featured pigs wearing a police officer’s hat. On Sunday, as he explained his decision to sit during the national anthem during the 49ers’ first three preseason games, Kaepernick cited the killings of black people by white police officers as an issue that had inspired his stance. People are being given paid leave for killing people. In a letter to 49ers CEO Jed York and NFL Commissioner Roger Goodell, Police Officers Association President Martin Halloran called Kaepernick’s statements “foolish” and said he had “embarrassed himself, the 49ers organizations and the NFL based on a false narrative and misinformation that lacks any factual basis.”