1. what on Nirn did you do to the Bear man or his wife to make him dislike you so much? They're always the nicest folk imaginable to me, even after I rob them or change their books.
2. I've been there. I usually end up poison placing while invisible to get the job done.
1. I have no idea, but it's either I kill the dude, or try to locate any quest and use console to redo that.
2. Thanks for the tip. Nazir tells me that Anoriath sometimes hunts in the outskirts of WR, but he never actually leaves Whiterun, and he seems to be well protected. And as for Ma'randru-jo, (s)he has a camp on WR stables, and seems to me they set a camp there more or less permanently and the target is always surrounded with other Khajiit so invisibility sounds like a good idea here.