Yeah that's a little weird why she killed herself but some radio stations need to be careful of what the reaction may be. A radio show in Houston 106.9 The Dean and Raj show they prank called people in their birthdays they called it the birthday scam and only maybe 14 people have tooken it seriously but they are careful at what they do. This Australian radio show I don't think was careful nor who ever gave them the number was careful.
I heard the apology on a Sydney news broadcast. It was forced on them because of public opinion but had no sincerity at all.
Admittedly the nurse must have been a bit scatty to fall for such an unconvincing imitation (it was replayed on Australian TV) but these people have to accept some of the responsibility for her death. They won't, of course.
Some English people treat the Royals with the same kind of adoration some kids reserve for Justin Bieber. If the nurse was one of those, and if she felt that she had betrayed "her queen" it could easily have pushed her over the edge.