Feb 26, 2021:

Richard Holzer was sentenced to 235 months (about 19.5 years) in prison, followed by 15 years of supervised release.

Judge Raymond Moore said:

I am not one who believes that harsh punishment is only reserved for people who managed to succeed...He attempted to blow up a synagogue, to wipe it from the face of the earth and to terrorize a Jewish community…It is one of the most vulgar, aggressive, evil crimes that can be committed against an entire group of persons.

Source:

(February 26, 2021). "Southern Colorado Man Sentenced to More Than 19 Years for Plotting to Blow Up Synagogue". justice.gov. Retrieved 2021-02-28

Hernandez, Elizabeth; Schmelzer, Elise. (February 26, 2021). "Colorado white supremacist who planned to blow up Pueblo synagogue sentenced to federal prison". The Denver Post. Retrieved 2021-02-28

Oct 15, 2020:

In a plea agreement Richard Holzer pleaded guilty to federal hate crime and explosives charges.

Holzer self-identifies as a Neo-Nazi and a white supremacist.

Source:

Tabachnik, Sam. (October 15, 2020). "White supremacist who plotted to destroy Colorado synagogue pleads guilty to federal hate crime charge". The Denver Post. Retrieved 2021-02-28

Nov 4, 2019:

Twenty-eight-year-old Richard Holzer was charged with a federal hate crime for plotting to blow up the Temple Emanuel Synagogue in Pueblo, Colorado.

Source:

(November 4, 2019). "Southern Colorado Man Charged with Federal Hate Crime for Plotting to Blow Up Synagogue". justice.gov. Retrieved 2021-02-28