I strongly suspect this guy was an FBI or CIA asset or engaged in money laundering for some criminal enterprise.
Only the actions of a single police officer (possibly off duty and hired as security for the event) prevented multiple deaths and casualties.
Then there's Fast & Furious.
Is it beyond possibility that the Deep State and their foot soldiers in the alphabet agencies are involved with this one?
No!
per screen grabs:
Gun runner 4FBI 2ISIS.
Deal went sideways-they killed him, did the shooting, and are in the wind.
Another fail for the G-men and their guns.
They never learn....
Info from hack
of LVPD/GVTmail