Whodunnit?

This morning, I woke up with a pounding headache and a sour stomach. I had to teach nursery at Church... (no kids showed up)... and I tried to stay for the service... but i just couldn't do it. So, I came home. I walked in and was greeted by Boo... went to my room to change... then decided that I needed to do some laundry. I had some rugs hanging on a drying rack in my laundry room--so I decided to vacuum and then put them back on the floor. I vacuumed in the bathroom and kitchen (i loathe the carpet in those rooms! ick!)... and then came in to vacuum the living room.... to find...... this:
(Don't mind the dirty carpet - hence the reason I was vacuuming)
I am not sure how a ground mole would've gotten in my house... and I am really not sure how it died!!! I cleaned it up... scooping with the dust pan... and it wasn't stiff. ICK!!!!
Boo could've brought it in... but she barely even paid attention to it. So maybe it was her... and she'd just lost interest by the time I got home? i can't even think of when it may have gotten in!!!
Then there is Weezer... but she doesn't ever go outside. I imagine she would go after it if she saw it... but I am just baffled by how this may've happened!!!
I am thoroughly grossed out! The question still lies... Whodunnit?

Well, I'm off to lay down... my head hurts so much that I feel nauseous...