NEW YORK (CBSNewYork) -- Key clues from the Medical Examiner's report are paving the way for murder charges against Levi Aron following days of collecting and cataloguing piece of evidence, CBS 2's Sean Hennessey reported.
It has been a week since the dismembered body of 8-year-old Leiby Kletzky was found. Tuesday evening, the ME turned over his report to Brooklyn District Attorney Charles Hynes' office. An indictment in the case is expected to come as soon as Wednesday.
Earlier Tuesday, Hynes paid his respects to Kletzky's family at their Borough Park home.
CBS 2 learned that information from the Medical Examiner included clinical information about the cause of the little boy's death and the ME's opinion of when that murder may have occurred.
Hynes has promised to bring justice to Kletzky's memory and told the boy's grieving parents and sister that he is going to work his hardest to make sure the case against Leiby's accused killer is tight and thorough.
WCBS 880's Paul Murnane In Kensington, Brooklyn
"There will be several steps in this case before he goes to trial," Hynes said. "We are gathering, with the police, every piece of forensic evidence necessary to support our case."
1010 WINS' Juliet Papa reports: A Very Careful Process
Aron is being held in a psychiatric ward at Bellevue Hospital under tight security. His attorneys met with him for about two and a half hours and they said their focus is on their client's mental state. They are also seemingly already laying the groundwork for an insanity defense.
"All we can say at this time without going into specifics upon talking to him for quite some time is that there's a severe diminished capacity," said Gerard Marrone, one of Aron's defense attorneys.
Marrone said his client still hears voices, and is trying to use loud music to drown them out.
At Aron's house in Kensington, Brooklyn where the brutal murder and butchering allegedly occurred, investigators have been removing evidence, including a cat that was brought out on Tuesday afternoon.
Asked why crime scene detectives were still at Aron's home, Hynes said "this is a a very, very careful process."
"If you look at cases that have happened recently, if these kind of cases are rushed, mistakes are made," Hynes said.
Police are investigating whether Aron may be connected to any other cases of child abuse, or worse, by checking his DNA against evidence gathered at crime scenes around the country.
At the home of Leiby's family in Borough Park, visitors from around the region and nation are coming to pay their respects.
A single, heartbroken mourner wept quietly outside the Kletzky home Tuesday for the murdered little boy and his mother's unimaginable loss.
'This should have never been. She should have never been stripped of her son," Dapne Zerbovley, of Great Neck, told CBS 2's Scott Rapoport.
Zerbovley said that she doesn't know the Kletzky family, but knew she had to come. She said she wished that God would give the boy's mother the "strength to survive this horrifying, horrifying ordeal."
Joe Gross has known the victim's father, Nachman, since their boyhood and says the dad's pain is immeasurable.
"It's like a knife in the heart," Gross said. "Very, very, very emotional about it. Distraught."
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