for the feds:
https://www.nytimes.com/2017/10/03/us/las-vegas-gunman.html
"His work history is unclear; his brother has described him as a wealthy retiree. He worked for the Treasury Department in the late 1970s, according to a law enforcement official familiar with the investigation, who cited a government review of employment records, but it was not clear for how long.
He applied for several jobs with other government agencies, for which he submitted fingerprints along with job applications dating back several decades, the person said. He also worked in the 1980s for one of the companies that later combined to form Lockheed Martin, the aerospace contractor."