Some examples and use cases from the internet:

Some examples and use cases from the internet:

• Any leads yet as to who might have done this to Dr. Zelenka?
• No notion as to who might have done such a thing?
• I'm just curious as to who Justin Guthrie might have collaborated with to rob the diamond exchange.
• Any thoughts as to who might have killed him?
• As yet, we've got no leads as to who might have done this to him.

• It doesn't look like this phrase is very popular! The search could not find any examples on the internet.