Sheriff’s comments at the press conference yesterday:
He [the security guard] was conducting an investigation based on customers calling in, and he was personally attempting to locate what was occurring, he happened upon that doorway because it was ajar, which keyed his interest, but our officers were in close proximity so as you can imagine by the timeline there, soon as they came out of the doorway from the elevator he was there so it happened in a matter of seconds/
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This does make most sense. He was investigating “something” ..but probably had no idea what the heck was going on, just as other guests who called security didn’t know either.
Gets to the room sees the door ajar and then gets fired on and retreats into the staircase or wherever.
But the door being ajar doesn’t mean there was another person in Paddocks room who left.
To my mind it would strongly suggest a situation in which a second person had exited the room and as a result the door was ajar, perhaps by something he dropped blocking the door, perhaps unintentionally in his haste.
Because Paddock would not have left the door ajar while he was shooting. That simply isn't believable. I think this point is why they have come out with the new story to make clear that it was not Paddock's room that had the door ajar, but another one down the hall.