<p><span class="deck">Abraham Lincoln signed it. A lot of scholars say he didn’t write it. Now, newly discovered evidence helps solve an enduring mystery.</span></p>
<p><span class="deck">Her son had her committed. She said it was so he could get his hands on her money. Now, 130 years after this bitter and controversial drama, a trove of letters—long believed destroyed—sheds new light on it.</span></p>