CNN's Josh Levs, Brian Todd, Dugald McConnell, Christine Sever and Shawn Nottingham contributed to this report.

CNN: Snowmobiler Caleb Moore dies a week after crash

CNN's Deanna Hackney, Stan Wilson, Dugald McConnell, Shawn Nottingham, Emily Blakemore and Brian Todd contributed to this report.

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CNN's Ben Wedeman, Ben Brumfield, Marilia Brocchetto, Sarah Brown, Dugald McConnell, Brian Todd, Claudia Rebaza and Jason Hanna also contributed to this report.

CNN: March 19, 2013 -- Updated 1407 GMT (2207 HKT)

CNN's Dugald McConnell and William Mears contributed to this report.

CNN: New hearings in Chandra Levy case add to mystery

CNN's Brian Todd and Dugald McConnell contributed to this report.

CNN: Both sides using Rove's campaign strategy this year

CNN's Dugald McConnell contributed to this report.

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