If you could pick one unresolved mystery/murder to solve what would it be?

[CharleyFarleyy]

Mine would be Andrew Gosden, not a week goes by where I don't wonder what happend to him!
What's yours? Bonus points if you include your on theory of what happend!

I remember the day Andrew left very clearly, i was feeding my then baby her tea in her highchair when Andrew's Mum knocked on the door and asked if we'd seen Andrew that morning.
We live directly opposite the Gosdens and my husband had been painting the front of the house that morning.
I see the heartbreak and pain this has caused daily, Kev, Glenys and Charlie will never get over this.
Andrew has missed so much, his sisters wedding and other important family days.
My 'baby' is now 12 and a stark reminder of how long Andrew has been away from home.
Andy if you by any chance see this thread, call home, let your Mum Dad and Charlie know you are safe. They will love you till the end of time and then some.