Eye Contact by Cammie McGovern
Cara is a single mom to 9 year old Adam, an autistic boy. At recess, Adam disappears into the woods with a new girl, Amelia, who is in his special education class and is later found over her dead body. Adam has never had a friend before and struggles with communication. What made him break the rules and escape recess to enter the woods? How can Cara help the police "unlock" Adam's, the only witness, mind?
The book is a mixture of the struggles parents of autistic children, Cara's life growing up and how she came to have Adam, and of course the mystery of who killed the girl and how much Adam saw. I thought it was a good story.