Contemporary Services Corporation (CSC) provided security for the Route 91 event in Las Vegas. https://www.reviewjournal.com/crime/homicides/lawsuits-claim-mgm-has-no-liability-to-las-vegas-shooting-victims/

The CEO of CSC is Damon Zumwalt. (Damon Ray Zumwalt)

His brother, Coy Zumwalt Jr. (Coy Eugene Zumwalt Jr.), is also involved with the company, but his exact role is unclear. He is listed as a director on Open Corporates https://opencorporates.com/companies/us_nv/E0016952007-2

But isn’t mentioned on the company website https://csc-usa.com/management

Their parents were both masons.

Their father was Coy Eugene Zumwalt (now deceased). He was a 33rd Degree Mason. http://archive.is/D5Zmq

Their mother was Audrey Maline Zumwalt (now deceased). She was an office manager and bookkeeper for Contemporary Services Corporation, and a Worthy Matron with The Order of the Eastern Star. http://archive.is/i5Afd

Both were also members of the Golden K. Kiwani’s. http://www.kiwanis.org/about

This might be worth looking into as it seems a little suspicious and coincidental.