Dead Wrong

A teenage boy is murdered and it's up to Jamie and Jack to solve the case. Well, okay - Jamie, Jack, and the ghost of Michael Donovan.
Jack left her last job under peculiar circumstances and now she's doing her best to hold on to her new job without it all blowing up in her face.
What are the odds that the only person that could possibly understand her situation would end up being her new partner?
How do the two of them explain where some of their information comes from, when the person giving it to them is the murder victim?
They'd better be right when they finally find the answers because it's fatal to be dead wrong.