WASHINGTON —

A former Olympic snowboarder for Canada who is wanted by authorities for running a multinational drug trafficking network is facing additional charges in connection with the killing of a federal witness, Attorney General Pam Bondi said on Wednesday.

Ten other defendants have been arrested on charges in the federal indictment unsealed in California that accuses Ryan Wedding of orchestrating the January killing of the witness in Colombia to help Wedding avoid extradition to the U.S.

Authorities are now offering up to $15 million for information leading to the arrest of Wedding, who's on the FBI's 10 Most Wanted list . He's believed to be living in Mexico under the protection of the Sinaloa cartel, which authorities say he's working with closely to funnel massive quantitie

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