Drug firm founder once among Arizona's richest billionaires

The drug company founder charged with leading a nationwide conspiracy to bribe doctors and pharmacists to widely prescribe an opioid cancer drug for people who didn't need it came to the U.S. for postgraduate studies and for a time was listed among Arizona's richest billionaires.

Forbes several years ago listed John N. Kapoor, the founder of Insys Therapeutics, as having a worth of $2.4 billion. That worth has fallen amid indictments of numerous fellow Insys executives. But Forbes still listed Kapoor's worth at $1.75 billion on Thursday as he went to U.S. federal court in the fraud and racketeering case.

Kapoor and some of his colleagues were charged with pushing prescriptions for the addictive drug the same day President Donald Trump declared the opioid crisis a nationwide public health emergency.

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Associated Press writer Jacques Billeaud contributed to this report from Phoenix.