US Attorney General Eric Holder and other officials will speak at a ceremony at Virginia's Arlington National Cemetery to remember the 270 victims killed in the Lockerbie disaster. Flags were held by servicemen, as the names of those killed were read out.
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Rob Lowe said he was "devastated" by his close friend's death.
The company is relaunching the beloved classic alongside new lines.
Once named as Britain's tallest man, the 7'7" star played Mag The Mighty in the fantasy series. He died following heart failure.