note: by second degree I mean ordering someone to kill someone else, I'm not sure if it's the correct legal term, but i'm pretty sure it isn't allowed...By manslaughter I mean an action resulting in the death of another person, without this being the intent

1. B is guilty of murder, A is guilty of second degree murder (at least)
2. Depends on the kind of harasment, however, A is never guilty of murder, manslaughter or anything like that
3. B of murder
4. B is an idiot, and guilty, and like before A is only guilty of the crime (s)he committed, not genocide
5. B involuntary manslaughter (if that exists) or even self defense, A murder
6. D obviously, A second degree
7. A god can do his own killing...
8. B, A second degree
9. depends on the time between the actions, A is at least guilty of attempted murder, B might have acted in self defense, I'm willing to accept temp insanity if the time between both events was very short (seconds, minutes, it would be the same scene in a movie...), if the time in between was a matter of years it was certainly murder. If it was a matter of hours, it's tough to say just from the data...
10. depending on the kind of harasment, might be self defense (at least perceivedthat way by B), or temp insanity (killing the guy who just raped you...)
11. A is not guilty of what happened to C, B isn't guilty of murder (or manslaughter)
12. same logic as 11
13 C of murder
14 D of murder
15 depends on the kind of illness, B could be considered 'insane' and just get thrown into the psychiatric system, A could B considered a murderer (at least second degree, probably first if B was seriously ill)
16 A second degree, B first. Unless there was no other way of B to obtain food for him and his family, incl prostitution, theft, work, social services, etc, which in reality is never so, then b gets manslaughter