Change of Heart (Robyn Hunter Mysteries) Reprint edition

"Robbie," my dad said. "You told me yourself how Billy has been behaving. And you know the case against him he had a grudge against the victim, he was found with the weapon, he was at the scene. Motive, method, opportunity."

Robyn's best friend Billy has been a mess ever since her other best friend Morgan dumped him. To make matters worse, Morgan started dating hockey star Sean Sloane right afterward. Billy is a vegetarian and an animal rights activist--he wouldn't hurt a fly. But when Sean winds up dead on the ice, Billy becomes the prime suspect. Can Robyn prove her friend's innocence?