Timothy Walters Kleinert
--He may be kinda "leading" the people into shooting. He starts moving on his own, which causes the shooters to panic and "shoot", though at that point it's too late and he's already moved.
To my eyes, the latter seems like the more plausible option, but I can't tell exactly what he's doing.
And that's what Ueshiba probably did, and the cause of his "failure" when tried the same stunt with Sadajiro Sato.