The incident in question takes place at 3:03 during Sign of the Cross in this video, which isn’t mine. I was near the incident and can verify security was trying to throw the man, who appeared to be an adult, out for trying to bull his way up to the barrier and that people around the guy were pointing at him and complaining. Beyond that, I couldn’t see what happened once security went over the barrier but I saw a security guard with a bloody face due to a forehead injury walk among the crowd while it was still going on.
When Bruce stands at stage right with the cross at about 6:01 in the video, he’s shining the light on the incident still going on with security in the crowd and commenting his disapproval while unmiked.
The concert cameraman may have captured a closer view at the beginning of the incident. After Bruce addressed this between sets, Tacoma Dome security went around the barrier with a sheet of paper taking names of witnesses. I didn’t see enough of the incident to sign up as a witness.
I also noticed there was a lot of pushing and passive aggressive bad behavior in general at the Tacoma show and it was tiring to hold onto your place at the barrier once Maiden started playing. The crush lessened a little following the security incident but was soon back to a full court press shortly thereafter. Waking up today with ringing ears and an aching back but still enjoyed the show.