[PapaBear3625]

I would not think it odd for a pilot to spend time familiarizing himself with landing areas which he might someday need to land at, either routinely or in an emergency.

It might have been a hijacking by the co-pilot, but just having some runways in his simulator is not definite proof of intention.

[Jack Hydrazine]

Those might be alternate landing sites for ETOPS purposes.

http://en.wikipedia.org/wiki/ETOPS
ETOPS is an acronym for Extended range Twin Operations[1] as re-defined by the US Federal Aviation Administration (FAA) in 2007.

It refers to flight times between diversion airfields, regardless as to whether such fields are separated by water or land. In aviation vernacular, the colloquial backronym is “Engines Turning Or Passengers Swimming,” referring to the inevitable emergency water landing of a twin engine aircraft after a double engine failure over water outside gliding range of land.

[Cowgirl of Justice]

I have flown with thousands of pilots- many who fly mostly international destinations. I have NEVER heard of anyone having a full blown mock up in their home. EVER.

This guy is it. He is who they need to be looking for and get his family and torture them until they talk.