Will a person die when their name is written in the situation of death?


The answer by Imprfectluck at [this
question](https://anime.stackexchange.com/q/21659/6166) made me wonder what
would happen to people whose name was written down in the details of another
persons death. For example: _John Doe dies after his date with Jane Doe_. The
foremost basic rule of the Death Note states that `The human whose name is
written in this note shall die`. **So will Jane Doe die?**

We additionally have rule LIV that states that if you write the cause and
details of death on a different page, you need to be thinking of the original
victim and would not be able to think both of John and Jane at the same time.
This would indicate that you have to choose what will happen. Either you think
of John and the details happen, either you think of Jane and she dies. Does a
similar rule exist when writing on the same page? Or is writing someone's name
in the details of another's death just an exception to that first rule?

> In order to make the Death Note take effect, the victim's name must be
> written on the same page, but the cause of death and situation around the
> death can be described in other pages of Death Note. **This will work as
> long as the person that writes in the Death Note keeps the specific victims
> name in mind when writing the cause and situation of death.**




It seems this was actually confirmed by L in chapter 45. The Yotsuba company
had made tests of their own, and deduced rules from this. One of the things
they deduced was that

> If other names are specified, the action becomes void and they all have
> heart attacks.

Therefore a person written in the situation of death would completely void the
action and kill all written names with a heart attack. Obviously the most
fundamental rules need to be fulfilled (eg: Think of that person's face,
nicknames would not work, ...), but it seems that the complete action would
actually be voided if more names were written down in the situation of death.

![enter image description here](https://i.stack.imgur.com/hseDp.png)

