Truth and Lies (Mike & Riel Mysteries)

Mike's lies are spinning out of control and now he's the prime suspect in a murder. He can't explain his bruised and skinned knuckles, and he can't explain why he was seen near the park where Robbie was killed. But he insists he's not a murderer. Still, if Mike really is innocent, why doesn't his alibi check out, and why are the police so sure that he's guilty?