They cannot feed her because her husband (or the judge) has posted police to specifically prevent it.
In other words, they are not really interested in a natural death for her. Otherwise, once they removed the feeding tube, they would begin giving her food and water by mouth.
If she swallows and lives,that upsets their real intent.
If she can't swallow...why are there guards at her door so that no one gives her food or water?????????