Before authorities charged him with attempting to assassinate President Trump and top administration officials in a brazen attack at the Washington Hilton, Cole Tomas Allen lived what those who knew him described as a quiet, simple existence. He worked as a tutor and enjoyed video games, manga and riding his blue scooter. Acquaintances said Allen rarely talked about his political views through much of his adult life. But on social media, he appears to have expressed concerns about the morality of U.S. policy, particularly its role in the wars in Ukraine and Iran. Now, those who crossed paths with him…