I think the rule is, never title something with a question when the answer IS "no." That happens all when e.g. reporting on sexy rumors that everyone knows aren't really true.
This is an actual open question, though. I have no problem with that.
My point wasn't about grammar, it was that the stated hypothesis is false, and the story is pointless. This reporter did not find his target or even shed any light on the subject.
This is an actual open question, though. I have no problem with that.