We lost part of our tree!!!!

We lost the top part of one of our tree's in the front yard last week. I got a call from our neighbor and she askes me if I have looked outside lately, I hadn't so I go and look and this huge tree branch is on our lawn.... ok it's not that huge, but it is alot of branches!!! I think the one top branch took out another one as it fell...... oh well, at least it didn't hit the house. We have no idea why it fell as we had a bit of rain that day, but not any wind..... Weird!!!!
PS- Hay took these pictures for you!
We weren't able to take it apart before Halloween so we stuck some webs on it and called it our decorations!