What is the Penalty for Helping Cause Millions of Deaths and Who Will Hold Fauci Accountable?

Who's going to hold Fauci accountable? Fauci's emails suggest knowledge of the possible link between Covid-19 and the Wuhan lab. Yet he refused to reveal the dangerous "gain of function" research the Chinese were doing and he was collaborating with. What's the penalty for these bad actors helping to cause millions of deaths?