FlightAware Just looking at a flight from August, shows aircraft filed for 410 and 10 minutes into the flight was at flight level 240 - fsmex poster state aircraft was at flight level 270 when it 'fell' from the sky to 8300 feet in seconds and was off the radar in less than 14 seconds. (unconfirmed)
As for Starwood Management, they have an active fleet of at least; 2 Beechjet 400A, 2 G2's, 2 G3's, 5 Hawkers (600-700-800), and a Phenom 100.
Retired of just not flying, 1 G2, 1 G3, 2 Hawkers, 1 Westwind 1124, 1 Lear 23, 1 Falcon 20.