New details about a 1997 extortion threat against Utah Jazz team owner Larry H. Miller have emerged in an 86-page FBI file on Miller.

The file includes a copy of the extortion letter sent by Richard Christiansen as the Jazz prepared for the sixth game of the 1997 NBA Finals against the Chicago Bulls.

Christiansen, then a 42-year-old Tremonton resident, threatened to blow up the Delta Center unless Miller paid him $150,000.

Christiansen was arrested in June 1997 after a package was dropped off at a field in Woods Cross by an FBI agent who posed as Miller.

Christiansen later received home confinement and probation. The Delta Center, today called EnergySolutions Arena, and fans were unharmed.

— Associated Press