Well according to SafeSport, anyone can file a complaint.
https://uscenterforsafesport.org/report-a-concern/
However, Starocci does not appear to be listed on their site with a current complaint. The screenshot going around that was posted on this forum which I’m sure you’ve seen is apparently actually from USA Wrestling (maybe you knew this and were just looking for a gotcha).
https://www.usawmembership.com/ineligible/interim_membership_suspension
This is a list of people who, according to the site, have had complaints filed with either SafeSport or USA Wrestling. If not SafeSport, then it had to be through USA Wrestling. And it appears anyone can file a complaint through them also.
https://www.themat.com/how-to-report-misconduct