The photo is actually of a member of the security team that walks behind Billie Eilish, during her concerts: when she does what is called a “crowd run” : she runs by the barricade close enough to touch her most devoted fans’ hands.
The concern in the face of this poor bastard is because he does not want to lose his job, and he surely would, if a fan with not so good intentions for the third time violently yanked Billie by her hair or arm.
For it would definitely mean.
“86 security team. “
The two concerts leading up to this particular one:
at which I had the privilege of taking this photo whilst accompanying one of Miss Eilish‘s “non-yanking” devoted fans—
The unfortunate event happened back to back.