"We kind of put all three of these cases together to work them to see if there's any connection, " FBI Special Agent Scott Wilson, in the agency's Cleveland Division, said then.

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The resignation came the same day that some people were arrested "for racketeering and money laundering charges in connection with Allied Veterans of the World's illegal gambling companies, " Scott's chief of staff Adam Hollingsworth said Wednesday.

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Matthew Scott of Stanford and a team at UC, San Francisco, working separately, made a huge connection: Defects in hedgehog or related genes were present in two rare diseases linked to cancers.

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