Pulling the Thread

You kno that moment on CSI:Miami when they put up all the pictures of the mafia family tree and when they come back from commercial the rookie has pinned a ribbon to connect a series of the killers in a way now one else saw?

I have been wondering why they used a flat wall or a 2D whiteboard to solve such complicated crimes? The FBI is often working on scenarios that are very complex, full of personalities, late-night events that they only see on low-res surveillance cameras and are often solved with a puzzle piece they don’t obtain for a very long time. Why not use spatial computing to keep the