Springfield Three relationship diagram (first iteration)

I was finding it extremely difficult to keep track of all of the people and relationships between them in the case, so I decided to make a relationship diagram of the case. I used a free program called yEd (www.yworks.com/products/yed) which I decided on after searching around for some time.

I plan to improve it by adding much more information to it - eventually I hope to encompass all of the case's information in one massive diagram made up of multiple smaller diagrams, each mapping different types of information (a very ambitious goal indeed).

If this gets much interest and there are enough willing contributers, I think it would be really interesting to turn it into a community project with different people working on the sub-diagrams that are later compiled into the overarching diagram.

Any thoughts/input (about the diagram or idea) appreciated!