Tonight on 360°, Anderson is reporting live from the African nation of Ghana where Pres. Obama arrived this evening. Plus, new details in the Michael Jackson death investigation. And, 360 M.D. Sanjay Gupta teams up with activist Erin Brockovich to cover America’s largest environmental disaster. It happened just months ago and dozens of families are leaving in fear.

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We have new information on the investigation into Michael Jackson’s death. Will it become a criminal investigation? Maybe even homicide? We also have stunning new details on Jackson’s suspected drug addiction.

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The memorial service is over, but there are new twists in the investigation surrounding Michael Jackson’s death. There’s also word tonight that the Jackson family tried an intervention to get Michael to stop using drugs. Overseas, President Obama is meeting with the world’s economic powers in Italy for the G8 conference where the global financial crisis is taking center stage. Weigh in on these and other stories.

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Today we’re doing a special live blog during Michael Jackson’s memorial service. Join us as we bring you live coverage of the event — which will include many performers who are all gathering to memorialize the ‘King of Pop.’ Join in and share your thoughts on Jackson and the service.

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Tonight on 360°, gearing up for Michael Jackson’s memorial service tomorrow at the Staples Center in Los Angeles, Sarah Palin’s surprise resignation and the manhunt for the serial killer in South Carolina.

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Tonight on 360°, the surprising career change for Gov. Sarah Palin. She’s quitting her job as governor of Alaska by the end of the month. The big question tonight is: Why?

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We have information that might shed new light on perhaps the central unanswered question in Michael Jackson’s death. Was the “King of Pop” using powerful, potentially deadly, surgical anesthetics to get to sleep? Don’t miss our exclusive 360° investigation.

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Tonight on 360°, why a public memorial for Michael Jackson won’t be held at his Neverland ranch. Plus, who’s named and who’s not in Jackson’s will. If you have a question about Jackson’s estate text it to 94553. The message must start with the letters AC, and then a space, then your name and question. If you do not include AC first with a space, we will not receive your text.

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Tonight on 360°, Michael Jackson’s former nurse is speaking out. Hear why she says Jackson “desperately” wanted a heavy sedative to help him sleep. She says just four days before Jackson died, one of his aides placed a desperate call to her, indicating Jackson was extremely ill. She’s sharing her side of the story tonight on 360°.

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Tonight we’re following all the new developments in the Michael Jackson story.

A second autopsy was performed today at the Jackson family’s request. They are waiting for the results before finalizing funeral arrangements. While the pop star’s funeral is on hold, a host of legal issues and battles are already emerging.

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