[quote=@ChadsWorth The Third]
<Snipped quote by ActRaiserTheReturned>

Possibly. What would the Mystery Writer bring forth for the team?

<Snipped quote by GoyaVive>

I'll reserve either for you if you like.
[/quote]

The same as the detective. Not as good at telling people what to do. Doesn't usually carry a weapon. (Isn't trained in a weapon). 
Read the Murder scene. The Murderer (and me) will write this together, in mass detail, so you can pick and pull at everything you need. Take anything you think that might be of value. Still reads the murder scene and brings the details all together, but is better at talking people and making them talk than the detective.