jagnweiner,
First of all, sorry about the loss. That plane is a gorgeous airplane and it's truly a shame that it crashed. Now for the cause. I spend a lot of time in the air and I've seen a lot of weird thing happen with monokote. The weirdest that gets me (I see 3 or 4 of these every summer) is I will fly my plane and when I land I notice a hole in the monokote. It totally baffled me for awhile until it happened once and then I found the dead bug (Junebug to be exact) stuck inside the wing cavity. So I learned that the holes where being caused by hitting bugs in the air.

Monokote is just like anything else in the world in that they can fail for no reason at just about anytime.. It's possible that it just let go. It's possible that i developed a small crack from vibration and the wind blowing over it opened the crack and pulled the monokote off. I'm not saying that this is gospel and it's what happened, but rather just a possibility. Sometimes there is absolutely nothing you can do to save a plane. Sometimes it's like the Plane Gods are recalling the plane and you are powerless to save it. Stuff happens. I'm not trying to be cold-hearted about it, just saying that it can and does happen.

Once again, I am really sorry about you loss. I know how hard it is. About 4 years ago I had a Dave Patrick Ultimate bipe that I just flat out loved. I had about 100 flights on the plane when the plane gods recalled it. Actually, to be completely honest about it, it was more of a dumb thumbs on my part. Doing a knife edge circle and got disoriented on the back side and dumb thumb it right into the ground. Walking out and picking it up almost made me puke seeing totalled on the ground. On the way home I kept looking in my rear view mirror and I could see the remains in the bed of my truck and I made up my mind at that time that I was finished with flying. That's how much it hurt. Luckily my flying buddy knew how much it got to me and he took me to lunch the next day and talked me out of quitting, and I'm glad to this day that he did that. But what I'm trying to say is that I do know exactly how you are feeling right now. I know it hurts. Just hang in there, and get a new plane to fly, it'll be ok.

Hope this helps

Ken