The man who was found guilty last week of the murder of a Black Lives Matter supporter at a 2020 demonstration had previously gone on social media to discuss his desire to kill protesters amid a series of remarks that were also racist, according to a court filing ordered unsealed as Texas state officials weigh a request from the state’s governor to pardon him. Daniel Perry’s social media screeds resurfaced on Thursday at a delicate time in his case, which saw jurors reject his claim that he shot the Black Lives Matter demonstrator Garrett Foster to death in self-defense. It...