Leonard is an attorney and he knows that what happened does not fall into the class of accidental homicide. As you well understand, he was talking only about the absence of intent to kill. The aggravated child abuse in poisoning your child with result that this child dies is murder: the killing of another during the commission of a felony.
Chloroform is poison and you could see the skull and cross bones from a satellite. Every website searched, emblazoned with the symbol. So we have that cold, in conformity with the indictment and Leonard understands that. The poisoning is all over Caylee's horoscope and the event charts and horaries. Mars on the heart opposite Neptune. Mars afflicting Neptune, even if it does not aspect your chart but is only a formation in the heavens, poisons the body. Refrain from chemicals or drugs of any kind under such aspect. Mars was also on Caylee's Ascendant, the physical body, thus under attack along with her heart.
Saturn ruled the victim's House of routines, treatment, care. It too was natally placed in the heart Sign, Leo. Slow and steady, awful as an i.v. drip, over a prolonged period of time. "Keep your baby quiet with Xanax and chloroform!" But like others posting today, it does seem there was more because Mars (her mother as I've often explained) was square that Saturn, from the Sign of the neck. Mars acts swiftly and square Saturn, with cruel intent.
The FBI labs have only what is sent them to work with. I hope they had sufficient bones to scrutinize the skeletal assembly as well as bones for extraction. A baby's neck is not a stiff and creaking affair like ours. It is very flexible. Detection is difficult. And then, there is the tape. That should give Leonard pause.