You can't fault that. Crazy person leaves piece of luggage with personal junk in it in a public place like that and well, you can't guarantee what it is one way or another.

If I remember correctly, Eric Rudolf did a similar act when emplacing the Olympic Park bomb. A security guard spotted it, saw something off kilter about the act (I think the backpack was newer and cleaner than what a homeless person would have) and saved lives by acting before it blew.

Bunch of well worn but higher quality backpacks at the curb with a raggedy pit bull tied up near them = homeless people are shopping nearby.

Newer piece of cheap luggage set in a spot with maximum human traffic nearby, heck, I would call that one in and start clearing people from the area myself.

Sometimes a dose of reality cures people who want to be stupid and crazy and push other peoples limits of tolerance, sometimes they just plain decided to violate a whole lot of common sense and still push other people's buttons. It seems that Mr Striley found someone elses buttons he decided to screw around with by profiling a bombing attack, did not get reasonable and take a few honest steps to prove the suitcase did not contain any bombs and is going to spend some time in jail. His own fault entirely.