New unsealed document state that a 2nd person of inveterate is involved in the Las Vegas massacre investigation. He is said to have a TS clearance and worked for a Military ammunition company in the past.

BREAKING: Judge unseals search warrant records, 2nd person of interest in the Las Vegas shooting has been identified as DOUGLAS HAIG.
Haig’s LinkedIn shows he had a “DOD Top Secret clearance”, worked for top weapons manufacturers, and specialized in Military Ammunition.
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h/t Chadney