Game Over by Lisa Helen Gray

In the aftermath of the scandal at Whithall University, Allie and her friends are trying to pick up the pieces Logan and Jamie left scattered in the wind. But just when they think they’ve overcome the worst, tragedy once again strikes at the university.
No one is safe.
Everyone is a target.
A serial killer is amongst them, and Allie is determined to find out who it is. It’s a dark road to navigate, but Allie finds the strength to walk it with CJ by her side.
However, when more girls go missing and later turn up dead, Allie can only wonder if she will be next. Then, disturbing news finds its way to them, changing everything they thought they knew and turning their world upside down.
With the new information, CJ embarks on a new path, one which will lead them to uncovering truths about a past that was better left forgotten and puts CJ and Allie in the crosshairs of a killer.
Capturing the killer is their only option, but nothing comes without a price. And no one will come out unscathed.