If there was no chance of being suspected or caught then NO of course I bliddy wouldn't. Being disliked by someone is not a reason to take a life however tempting the money offer.
No. I feel guilty for killing spiders (although not flies, curiously). I once discovered a rabbit that was dying of mixamatosis and being eaten alive by flies, so I killed that and the whole thing has haunted me ever since. I'd not make a good picture.
So, if I can't even kill a fluffy bunny, the idea of killing a person is just beyond my comprehension - I have times when I am driving and I worry about what would happen if I killed someone accidentally, and I am sure it would haunt me for the rest of my life. So a million quid to see Winona's face in front of me whenever I close my eyes - nope, it is not worth it.
Unless she's cleared out my chocolate drawer at home. Then, I'd do it for free...
Give me 50 million, and I'd get together with Winona, we'd fake the murder and split the cash. With her history of shoplifting, you know she'd be up for it.