Who are the most notorious inmates at Leavenworth?

I'm curious, given the notorious reputation of Leavenworth Penitentiary, which inmates have stood out as the most notorious in recent years? Are there any particular individuals who have garnered significant attention due to their crimes, escapes, or influence within the prison? Have there been any high-profile cases that have put Leavenworth in the spotlight, and if so, who were the perpetrators? I'm interested in understanding who are considered the "worst of the worst" in this esteemed, yet infamous, prison.