[D13Fd]

Here are the federal sentencing guidelines for murder:

https://www.ussc.gov/guidelines/2023-guidelines-manual/annot...

First degree murder is a base offense level 43. Here is the sentencing table:

https://www.ussc.gov/guidelines/2023-guidelines-manual/annot...

You can see way at the bottom of the table that offense level 43 is life in prison even with no criminal history.

Even second degree murder is a base offense level 38, which is 19.5-24.4 years with no criminal history, or up to 30 years to life with criminal history.