Special counsel Robert Mueller filed his sentencing memo for former National Security Adviser Michael Flynn Tuesday.

Last December, Flynn pleaded guilty to lying to the FBI about his contacts with Russian Ambassador Sergey Kislyak. Back then, he was the second former Trump adviser, after George Papadopoulos, to cut a deal with Mueller’s team. And as part of that deal, Flynn committed to cooperate with the probe.

In the sentencing memo, Mueller assessed Flynn’s cooperation as “substantial,” and wrote that “a sentence at the low end of the guideline range—including a sentence that does not impose a term of incarceration—is appropriate and warranted.”

Flynn will be sentenced by a Washington, DC, judge on December 18. You can read the main memo below, or at this link.

And you can read the partially redacted supplement below, or at this link: