From the FL 2010 Statutes:
"(2) The unlawful killing of a human being, when perpetrated by any act imminently dangerous to another and evincing a depraved mind regardless of human life,
although without any premeditated design to effect the death of any particular individual, is murder in the second degree and constitutes a felony of the first degree, punishable by imprisonment for a term of years not exceeding life or as provided in s.
775.082, s.
775.083, or s.
775.084.
(3) When a person is killed in the perpetration of, or in the attempt to perpetrate, any: (a) Trafficking offense prohibited by s.
893.135(1),
(b) Arson,
(c) Sexual battery,
(d) Robbery,
(e) Burglary,
(f) Kidnapping,
(g) Escape,
(h) Aggravated child abuse,
(i) Aggravated abuse of an elderly person or disabled adult,
(j) Aircraft piracy,
(k) Unlawful throwing, placing, or discharging of a destructive device or bomb,
(l) Carjacking,
(m) Home-invasion robbery,
(n) Aggravated stalking,
(o) Murder of another human being,
(p) Resisting an officer with violence to his or her person, or
(q) Felony that is an act of terrorism or is in furtherance of an act of terrorism,
by a person other than the person engaged in the perpetration of or in the attempt to perpetrate such felony, the person perpetrating or attempting to perpetrate such felony is guilty of murder in the second degree, which constitutes a felony of the first degree, punishable by imprisonment for a term of years not exceeding life"
http://www.leg.state.fl.us/statutes...ing=&URL=0700-0799/0782/Sections/0782.04.html
I can see ICA being guilty of second degree murder. I can entertain the idea that she rendered Caylee unconscious without the intention of killing her.