Yay!!! Good for you!
We realized that our weasel was not a weasel. It was a mink. Dh read up online and discovered weasels are white this time of year. This one was brown/grayish black and larger than we'd expect a weasel to be. The one we killed was about the size of a ferret in the pet store (maybe a little smaller). Wish we would've known... dh would have skinned it (or is it "skun" it?).
Dh has also read up on a weasel/mink trap using a box and a rat snap trap. Just a wooden box, with only one 3" or so entrance on one side. On the other side, inside, the bait is placed. Inside the box, right next to the hole, the trap is set. Smell the bait and head into the hole but can't see the trap until it's too late. Also safe for animals we don't want to hurt.