Roanoke airport executives resign after internal investigation Both employees had been placed on administrative leave since November Published: Updated: Tags: ROANOKE, Va. – Two executives at the Roanoke-Blacksburg Regional Airport have resigned after they were placed on administrative leave pending an investigation last year. Officials with the airport confirmed Tuesday evening that executive director Timothy Bradshaw and director of planning and engineering Richard Osbourne both resigned. As 10 News reported back in November, Bradshaw and Osborne were on administrative leave pending an investigation. Airport officials said the internal investigation was regarding a procedural matter, but did not release further details to the public about it.