Brooklyn prosecutors have begun presenting the gruesome murder case of Leiby Kletzky to a grand jury in State Supreme Court, the International Business Times has learned.

Brooklyn D.A. Charles J. Haynes has indicating when his prosecutors present the case Friday they will press for maximum charges permitted by law against Aron for the vicious and callous murder and dismemberment of 8-year-old Leiby Kletzky.

 This development comes as the confessed murderer, Levi Aron, pleaded not guilty to charges he kidnapped and murdered Leiby, before Judge William Miller of Brooklyn Criminal court ordered him held without bail, mandating he undergo a psychological evaluation stemming from claims by his attorney his client may have mental issues.

“He has indicated to me that he hears voices,” his attorney, Pierre Bazile told Judge Miller as prosecutors uncovered the details in the still developing case. “[He] has had some hallucinations.”

Brooklyn D.A. Charles J. Haynes has indicating when his prosecutors present the case today they will press for maximum charges permitted by law against Aron for the vicious and callous murder and dismemberment of 8-year-old Leiby Kletzky.

Based on marks on the defendant it appears that there was some sort of struggle, said Police Commissioner Raymond Kelly.

Police still have no evidence as to whether Kletzky was molested before he was killed.

On Wednesday, body parts of Kletzky were discovered in both the refrigerator of Aron and in a dumpster about two miles away from Aron's residence.

The boy's feet, along with a bloody cutting board and blood stains, were found in the refrigerator. Meanwhile, other parts of his body were in a suitcase in the dumpster.

Kletzky went missing on Monday afternoon. He was on his way home, walking by himself from summer camp for the first time, and got lost. He then approached Aron, who had just made a payment to a dental office nearby, to ask for directions to meet his parents at an agreed location.

Aron convinced the boy to get in his 1990 Honda Accord, took the boy to his attic apartment, and ultimately killed him.

After the boy went missing on Monday, Aron was soon identified through the aid of a surveillance camera tape. When the police tracked him down and busted through his apartment on Wednesday, Aron confessed to the murder.

He directed the police to the boy's remains in the refrigerator and then pointed them to the dump. He explained that he killed the boy because he panicked when he found out that the police were searching for the boy.

Aside from the police, the entire tightly-knit Hasidic community in Brooklyn, to which the boy's family belonged, conducted an extensive search for him.

In his confession to police, Aron said: He fought back a little. Afterwards, I panicked because I didn't know what to do with the body.

The brutality of the murder has shocked many, even veteran police officers.

It defies all logic, and I think that is what makes it so terribly disturbing. To be killed in this manner is just heartbreaking. It is baffling, Kelly said.