Did anyone talk about the hot mic moment during Sleepy's presser today?

At the 1:16:35 mark of Biden's address today, someone is near a hot mic and says very clearly "so just so you know my life, as we're waiting to do this. I just agreed to a plea sentence for.. "(www.youtube.com)

Then the hot mic trails off.

First full day in office and a staffer has agreed to a plea for something?