From CNN, I'm Fez Jamil with the five things you need to know for Monday, December 23rd.

Most of the inmates on death row in federal prisons have had their sentences commuted this morning.

President Joe Biden has announced that 37 people will no longer face the death penalty

and instead will serve out life sentences behind bars.

The remaining three people on federal death row have been found guilty of mass shootings

or acts of terrorism.

The three include one of two brothers responsible for the deadly Boston Marathon bombing

in 2013, a white nationalist who massacred nine people at a historically black church

in Charleston, South Carolina in 2015, and the man who killed 11 worshippers at Pittsburgh's

Tree of Life Synagogue in 2018. The move comes as opponents of the death penalty are bracing

for Donald Trump's return to the White House after a moratorium during the

Biden administration, as the president-elect has promised to restart federal executions

and work to expand the pool of federal crimes eligible for capital punishment.

The investigation into the deadly Christmas market attack in Germany continues.

Dahlab al-Abdhul Moshen is accused of killing five people and injuring more than 200

by ramming a car into a crowd in the city of Magdenburg.

CNN's Matthew Chance has more from the scene of the attack.

A 50-year-old man, a psychiatrist who was originally from Saudi Arabia.

He is anti-Islam. He describes himself as an Islamophobe and has often posted on social media.

You know, very aggressive messages against Islam. He called himself the most aggressive critic of Islam in history.

He has been warning repeatedly on social media that

Germany is trying to Islamize Europe, posting conspiracy theories.

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