Shortly after midnight on Tuesday morning, videos captured the moment a makeshift bomb was thrown at the Portland federal courthouse during another night of violent protest. A Trump-loving, 69-year-old woman soon stepped forward to out the suspect publicly — as her own grandson. Karla Fox says she recognized the alleged bomber as her daughter’s son, 18-year-old Gabriel “Rico” Agard-Berryhill. In the hours after the IED attack, social-media users analyzed videos showing a slim male, wearing a distinctive olive vest with the word “ICONS” printed on it, throwing something over the fence at the Mark O. Hatfield Courthouse. Seconds later, a...