[CharacterCounts]

Leaving messages to communicate with the police does not fit the M.O. of Al Queada.

[gleneagle]

If the note just had the number "911" and nothing else would you conclude it had nothing to do with AQ?

[snippy_about_it]

This will be far fetched and yes I have my tin foil so here goes;

Suppose the number was to some house in the woods. The police trace the number, no answer. The police go to the house find the nutcase's wife and kids murdered. They let him know they found them and want him to call "home".

OR,

All they find is some cryptic message at a phone booth or house with that number? (going back to the terrorist theory)

OK

Or a cell phone he told them to set up.