
He was the world's first serial killer and he existed in the late 19th century, operating around the Chicago World's Fair, building a literal house of horrors, replete with chutes for dead bodies, gas chambers, surgical rooms. He methodically murdered up to 200 people, mostly...

The next subject for Geary's award-winning and increasingly popular series is a 19th century mass murderer operating around the Chicago World's Fair. Find out who had the capacity to build a literal house of horrors replete with chutes for dead bodies, gas chambers and surgical...