My son speculated that the shooter in Maryland might be part of a terrorist cell.

While I agree that either of these crimes could be the results of terrorist plots, it doesn't make much sense to me.

We have "non-alligned" criminals and nuts who are more than capable of doing these things.

If we're always looking for a terrorist, we will miss the sociopaths who I suspect are more numerous, though far less organized.

It makes more sense to investigate crimes based on the evidence and the circumstances. If a pattern emerges that indicates terrorism, it will become obvious to a diligent investigator with good information. (Tom? Tom Ridge? Where are you, Tom?)

If we assume the pattern first, we'll miss or misinterpret important information.

Regards--
Mary Anne