Operating over a five-month period in a single Russian city, Razzakov carried out a targeted killing campaign rooted in religious extremism, selecting victims on ideological grounds. The case sits at an intersection of serial violence and domestic terrorism, shaped by his membership in an organized extremist network rather than acting in isolation. His conviction and life sentence followed one of the more methodical investigations into religiously motivated serial violence in post-Soviet Russia.

His victims were elderly, and the violence was severe enough to earn him two regional nicknames that persisted in Turkish public memory for decades. Convicted of eleven murders and multiple rapes, Çolak received a death sentence that was later commuted — and was ultimately released on conditional terms after roughly two decades in custody.

What distinguishes Haigh's case is the escalating internal logic of his violence — beginning with opportunistic robbery-murders and expanding as he killed witnesses, associates, and ultimately a child who happened to be present. The seven killings span nearly fifteen years and two distinct phases: those committed for money or self-protection before his capture, and one committed inside prison long after. Australian courts have repeatedly rejected his appeals for reduced sentencing, leaving him among the country's few inmates serving multiple life terms without parole.

A Brooklyn restaurateur by front, he rose within the Murder, Inc. apparatus as a supervisor — the organizational layer that translated contracts into killings carried out by the syndicate's professional assassins during the late 1930s. His role was less that of a triggerman than of a coordinator, which placed him at the center of what prosecutors described as a structured enforcement operation serving organized crime across multiple boroughs.

Volkenrath rose from unskilled volunteer to the senior female authority at two of the most lethal camps in the Nazi system, a trajectory shaped by participation in selections that determined who lived and who was sent to the gas chambers. Her presence at both Auschwitz and Bergen-Belsen — the latter during the catastrophic final months of the war — placed her at the center of mass death across the full arc of the camp system's operation. She was tried at the Belsen Trial and hanged in December 1945, less than four months after liberation.