He was brilliant — undeniably so. But no one ever described him as warm.

Among classmates, he carried a nickname that said everything: a “walking brain.”

He played trombone in the school band. He skipped grades. He entered Harvard at just 16. To neighbors, his parents were the kind who “sacrificed everything they had for their children.”

By every outward measure, he had been handed rare gifts — and every opportunity to build an extraordinary life.

What he chose to do instead would horrify the world.

In 1942, a little boy was born in Chicago, into a working-class Polish-American family. His father made sausages for a living. His mother devoted herself entirely to her children, determined to give them every opportunity she never had

His parents were ordinary, working-class people. They were raised as Roman Catholics but eventually became atheists. In Evergreen Park, where their son grew up, neighbors remembered them as “civic-minded folks.” One neighbor said they “sacrificed everything they had for their children.”

He had a younger brother, David, someone who would one day play a crucial role in bringing his story to a close.

As a child, nothing seemed unusual. At Sherman Elementary, he was described as healthy, normal, well-adjusted.

The test that ‘changed’ everything

Then came the test.

In high school, his IQ was measured at 167 and he was advanced past the sixth grade. Years later, he would describe that decision as a turning point. Before skipping ahead, he had friends and was even seen as a leader among his peers.

But once placed with older students, everything changed, he no longer fit in, and became a target for bullying.

He played trombone in the marching band and was active in several clubs, including math, biology, coin collecting, and German.

But despite being involved, he never truly fit in.

As one former classmate later put it: “He was never really seen as a person, as an individual personality … He was always regarded as a walking brain, so to speak.”

The bullying didn’t let up. Over time, he pulled further into himself. The label stuck— “walking brain.”

He skipped yet another grade, graduated high school at just 15, and went on to earn a scholarship to Harvard.

But brilliance didn’t equal readiness. A classmate later said he was “emotionally unprepared.”

“They packed him up and sent him to Harvard before he was ready,” the classmate said. “He didn’t even have a driver’s license.”

Graduated at Harvard

At Harvard, the 16-year-old boy lived quietly among other prodigies, but even there, he stood apart. He was brilliant. Focused. But distant.

He graduated in 1962 with a degree in mathematics.

But his time at the prestigious institution wasn’t just about academics.

In his second year, he became part of a psychological study led by Henry Murray, one that pushed participants to their limits. They were subjected to intense verbal attacks, meant to tear down their beliefs and destabilize them.

Murray himself described the sessions as “vehement, sweeping, and personally abusive.”