Which sentence is correct?

[bit3034]

What's the location of the convict?
or
Where is the location of the convict?

 

[euncu]

***neither a teacher nor a native-speaker***

What's the location of the convict ?
or
Where is the convict ?

Also;

What location is ...?

 

[Barb_D]

What's the location of the convict?
or
Where is the location of the convict?

What's the location of X?
Where is X?