Police have ruled out foul play in Michael Jackson's death, and the Associated Press is reporting the singer suffered a heart attack (not just cardiac arrest). All eyes are on Jackson's cardiologist, Conrad Robert Murray, who police have yet to interview.

When Jermaine Jackson made a statement on his brother's death last night, he noted that Michael Jackson's family physician was with him when he collapsed. But who is he? And where's that doctor now? The world is looking for him.