Prosecutors tell CBS 2 they have received the report by the medical examiner which details Leiby Kletzky’s cause – and perhaps even time – of death. With that information, today is most likely the day Levi Aron will have a formal murder indictment filed against him in state supreme court.

Whats still unclear is what else prosecutors have in their arsenal.

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.

Investigators spent a week straight at Aron’s home, pulling out every piece of evidence imaginable, even digging up the backyard.

When CBS 2′s Kristin Thorne asked Brooklyn DA Charles Hynes if they’ve found evidence of other victims, he refused to answer.

“You have a perfect right to ask any of those questions, and I have a perfect right not to answer them,” he said.

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 on Tuesday and 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.

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