Shocking: Man kills pregnant wife believing she was hybrid human'

In a shocking revelation, a man allegedly murdered his pregnant wife with a sword, believing that she was a ‘hybrid human’ who would take over the world.

Arrested and tried, he has now claimed he was insane at the time.

John Ziegler III’s lawyers filed a mental health plea for him earlier this month for the murders of Diana Ziegler, 25, and their unborn baby girl last January in Pennsylvania.

Prosecutors have called for Ziegler to receive the death penalty.

He claims he believed if he killed his heavily pregnant wife he would save the planet from a global hybrid human conspiracy.

According to the suspected killer, he believed Diana was the “queen bee” of the cult and that she must be killed in order to protect the world.

When he was arrested last year, Ziegler claimed he could control the weather, with his emotions.

He also told cops he had been “feeling off” in the months leading up to her death.

A post mortem showed Diana had been stabbed in the neck and head with a scimitar-style sword.

It also stated the sword used was four inches wide.

Dianna had be beaten so badly that parts of her skull were found scattered across the house’s deck.