Ventriloquist III

Shauna Belzer, also known as the Ventriloquist, is a villain in the Batman comics. A telekinetic with a psychological obsession with murder, Shauna murdered her twin brother as a child and would go on to become the serial killer Ventriloquist.

History
As a child, Shauna was neglected by her parents in favor of her twin brother, Ferdie, and was often bullied by her peers. Shauna discovered that she had telekinesis, and used this ability to retaliate, often killing her tormenters. Eventually, Shauna, growing jealous of her brother, killed him by manipulating the swings he was on and causing him to fall off, snapping his neck and killing him. Shauna would go on to murder a clown at another girl's birthday party, Rainbow Rodney, and steal his ventriloquist dummy, whom she named Ferdie after her brother. As she grew up, she would go on to murder other victims, including her parents, and transform them into human puppets.