Jeffrey Neely knows how to throw a happening party. Neely, a high-level General Services Administration official, was the guy who planned the conference in Las Vegas that cost tax payers more than $822,000. Now, after being put on administrative leave since April, Neely has left the GSA. An inspector general’s investigation found that the conference was an egregious waste of money. The controversy led to the resignation of GSA Administrator Martha Johnson and two of her top executives. Nine others had to take administrative leave.