Details on attempted assassination-
Shooter had a plan. He snuck the "long" weapon disassembled in a bag into a lightly monitored area near the terrace-level entrance.
The room had bar carts being stored and "no security.”
He then rushed toward the stairs leading down to the ballroom, opened fire in multiple directions, “at least 10 shots.”
A Secret Service agent was struck, hit in the vest, and has been taken to the hospital.