[Miami Rebel]

They are not subject to prosecution for their official conduct. Yes, if a circuit judge kills her husband, she’s not immune.

[Carl Vehse]

However a judge can be prosecuted for his actions, such as bribery and other crimes. And this prosecution is separate from (and may be prior to) any impeachment and conviction by the House and Senate. See the discussion on the Art. III.S1.10.2.3 Good Behavior Clause Doctrine.