The smoking gun is on page 16 of the FBI’s 47-page report. It details how Mills ultimately made the determinations about which emails should be preserved before she and Clinton decided to delete the rest as “personal.” Clinton conducted both government and personal business using a personal email account — clintonemail.com — tied to an unsecured server set up in the basement of her New York home.

The FBI makes clear the procedure Mills used to sort out the emails was suspicious.

For starters, Mills was the one who ordered the server host to move the emails from the server to a laptop where she could screen them. She told investigators she could “not recall” if emails with non-gov addresses were included in the transfer. It’s unlikely they were, because an aide who helped her search told the FBI she only screened for emails sent to or from Clinton with .gov and .mil — not .com — addresses.

That means messages involving government business between Clinton and her then-deputy chief of staff Huma Abedin — the only aide who had an email account on the clintonemail.com system— were not likely captured. Nor were messages sent between Clinton and Mills and other aides using personal email addresses.