More than 48 hours after the worst mass shooting in modern U.S. history, police still don’t have a motive for the horrific crime.

But a more complete profile of the killer is beginning to emerge.

Stephen Paddock, the Las Vegas shooter who killed 59 people at a country music festival Sunday night, worked over a 10-year period as a letter carrier for the U.S. Postal Service, an IRS agent and a defense auditor.

A spokeswoman for the federal Office of Personnel Management told the Associated Press Tuesday that Paddock’s employment included two years as a mail carrier from 1976 to 1978.

That was followed by a six-year stint with the Internal Revenue Service until 1984. And then he worked as a defense auditor for about 18 months.

The latest revelation suggests the U.S. government should have an extensive file on its former employee, Stephen Paddock, who not only worked directly for the government for nearly a decade but then worked another year-and-a-half for federal weapons contractor Lockheed Martin.

With his institutional knowledge of how the federal bureaucracy works, Paddock was anything but the typical mass shooter. He would have been able to cover his tracks in the planning stages of his attack.

The Islamic State, or ISIS, has doubled down on its claim of responsibility for the attack, saying Paddock had converted to Islam in recent months and become a “soldier of the caliphate.”

But given the rapidly degrading status of the Islamic State, some analysts believe it could be entering a new phase where it is willing to risk credibility in its propaganda message in exchange for a short term boost in its prestige among Islamic terrorists worldwide.

In other news, leaked photos of the scene inside Paddock’s hotel room at the Mandalay Bay resort appeared to show a note on a small table near the shooter’s dead body. As of this report, no details have been released about what may have been written on that note.

Dina Amelia Kalmeta is the Founder and CEO of Your New Life in Christ Ministries - CWW7NEWS. Dina reports on world events as they pertain to Bible Prophecy. Before Your New Life in Christ Ministries, Dina served as a Leader for INCHRIST NETWORK leading teams online and spreading the Gospel of Jesus Christ. Her mission today is to bring hard evidence that what is taking place in the world isn't just coincidence, but indeed proof that the last days the Bible warned us about are upon us right now.