Two can perish as well as one, if they are sufficiently isolated from everything else.
The detainees' cells were sufficiently isolated from one another that they couldn't see one another.
It's sufficiently isolated in the grounds to keep gossip mongers away when I want a little private sport.
They won't acknowledge their shortcomings and are sufficiently isolated from the public not to have to acknowledge its frustrations.
Better still, if the site is sufficiently isolated, we can remove our clothes completely (or go 'skyclad', as the witches say).
The clouds must be sufficiently isolated to ensure that clear air can be found by flying out of the lift.
Although there is a bar, it has its own separate room, sufficiently isolated from both dining rooms.
And if it is sufficiently isolated from reproductive contact with other subspecies for long enough, it can evolve into a new species.
Social care planning might aim for admission to residential care, if the person was sufficiently isolated, anxious and incapacitated to warrant this.
The park was sufficiently isolated so that at least I would not have to risk loosing my bombs into a cellar full of children.