BROOKLYN - The defense attorney representing Levi Aron, the man accused of killing an 8-year-old Brooklyn boy, says he can prove Aron is insane.

Aron is accused of kidnapping Leiby Kletzky in July before killing and dismembering him.

In an exclusive interview with News 12 Brooklyn, Howard Greenberg, Aron's defense attorney, says he has various expert opinions proving that Aron is insane.

Greenberg also questioned the validity of the confession the prosecution says it will use against Aron, claiming the authorities fed Aron what to say.

Aron's next court appearance is scheduled for late December.

Defense claims Levi Aron confession was coercedFamily of Leiby Kletzky sues alleged killer and his father