Who is Dr. Alkad Mzu from The Neutronium Alchemist Consolidation and what is their importance?

The discoverer of the Alchemist weapon is a spry older woman of ruthless intelligence, all of which is bent upon exacting revenge upon Omurta, the world responsible for the genocide on her home world of Garissa. She is held captive on Tranquility at the Confederation's request for the last thirty years, but escapes and is at large.