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Charlie Sheen: A timeline of troubles

<div class="meta image-caption"><div class="origin-logo origin-image "><span></span></div><span class="caption-text">In the summer of 1990, Charlie Sheen entered rehab for the first time for alcohol addiction. He told USA Today at the time that he intended to continue following the 12-step program. His engagement to actress Kelly Preston ended later that year, following reports that Sheen had accidentally shot her in the arm. &#40;Pictured: Charlie Sheen in a still from his 1984 movie, &#39;Red Dawn.&#39;&#41; (Photo courtesy of Metro-Goldwyn-Mayer Studios Inc.)</span></div>
April 19, 2011 2:10:14 PM PDT