Twisted Summer — Willo Davis Roberts

Twisted Summer
Cici expected the summer to be special. She had no idea it would change her forever. Two kids, two lives, ruined before they even began. One, a girl, dead -- strangled in an empty cabin. The other, a boy, spending the rest of his life in jail for her murder. To Cici, it all seems so unreal. These were kids she had grown up with, whom she had known. She can't believe Brody Shurik could have murdered Zoe Cyrek. Something's going on here, and Cici's going to find out exactly what it is.

But Cici has an even harder time believing what she uncovers. Could the murderer really be someone close to her? Maybe even a member of her family? Cici must be on the right track, though, because now she's become the murderer's target!