Hello. Yes this is my first post. I've been lurking for a little over a year.

I write cozy mysteries, not yet published. In my current WIP I have the amateur sleuth, her family, and her best friend/sidekick. I have the victim. There are four suspects who all had motive. I even know where his body was found because that's an important part of why my MC gets involved. What I can't figure out is which one of the four did it and how they killed him.

If you'd had this kind of block before how did you get past it? I thought about just trying to let it come to me as I write but 1. I'm a planner and that would make me crazy. and 2. I need to know so I can plant clues and red herrings.

Any advice would be appreciated.