......... oorki, does the book state at what age limit the book can be read to a child (eg, is my 3.5 DD too young for it ??) ... thanks xox
the book is recomended for 3-8 year olds, so will be fine for your little one. she may ask different questions as she gets older.

Everyone's Got A Bottom - A Storybook For Children Aged 3-8 years

One possible issue with talking to the two little kids involved is possibly tainting their story if there is something extra going on that needs to be investigated by the police or child services. (in terms of what the kids at day care have seen/experienced)

Hope you get some answers this week.