Mitch McConnell was his boss. He was Sergeant at Arms for the Senate.
More here:
Senate Sergeant at Arms Michael Stenger who was in charge of securing the Capitol on January 6 dies suddenly - just one day before the Capitol riot committee is set to call surprise hearing to present ‘newly uncovered evidence’
Earlier thread:
https://freerepublic.com/focus/f-news/4074446/posts
McConnell was his boss on 06 Jan 2021.
Chuck Schumer was his boss since 20 Jan 2021.