charged with murder one of a little 9-year-old girl, this is video she, herself, posted on youtube or myspace showing electrocuting herself and her little brothers on an electric pence. nice. okay, rupa. >> the 5-year-old and 9-year-old -- neighbors say alyssa bustamante is quite thin, quite small, no way she could have dragged the body of a 9-year-old, maybe 60 pounds, 300 or 400 yards outside from the house into the woods where her body was found. the theory is that the 9-year-old was lured by bustamante. >> to dr. howard oliver, dr. oliver, stabbed, strangled, throat cut. why? why three alleged causes of death? can you tell which one was the actual cause of death? >> not all wounds are necessarily deadly. the autopsy will tell which was deadly. maybe all three were deadly. apparently, she wasn't successful at killing the other child with one or two methods and had to revert to a third method to finish the little girl off. >> elizabeth olten, 8 years old. on her way home, broad daylight, from a little play date. turns out the play date's older sister is bustamante, the 15-year-old now charg