Misty also mentioned cleaning in the 911 call:
911: "OK, when did you last see her?"
Misty Croslin: "Um,we like just, you know--it was about 10 o'clock--she was sleeping--
I was cleaning.
Here's an interesting statistic relating to 911 calls and extraneous information:
"Forty-four percent of the 911 homicide
callers included extraneous information in their call. Of those,
96 percent were guilty of the offense, and only 4 percent were innocent.
Extraneous information was the strongest indicator of guilt in the study."
http://findarticles.com/p/articles/mi_m2194/is_6_77/ai_n27504386
Here's what that extraneous information means to investigators:
<Snipped>
During the dispatchers' questioning, few of the guilty 911 callers actually lied unless forced to. Most of them deceived by omission, rather than commission. In lieu of offering the complete truth, such as I did it, many provided rambling information, instead of concise points; confusing, rather than clear, details; and
extraneous information, instead of relevant facts. These details, although, irrelevant to the dispatchers' questions, frequently related to the criminal act. People who provide more information than necessary may be attempting to convince someone of a deceptive story, rather than simply conveying truthful information. (4) In this regard
,investigators must listen carefully to the complete call because the caller may have provided information that reveals vital clues to the homicide.
http://www.fbi.gov/publications/leb/2008/june2008/june2008leb.htm#page22