Morgan had reportedly planned a shooting spree on campus targeting Jewish students, according to journals found in his car near the site of the shooting. But where did his obsessive targeting begin?

Justin-Jinich called NYU campus police after receiving 38 threatening emails from Morgan. Among his choice words: "[You're] going to have a lot more problems down the road if you can't take any fucking criticism, Johanna." Or this: "That is absolutely ridiculous! What is going through your fucking head?" Justin-Jinich did not press charges, and the university dropped the matter.

There always seems to be one creepy guy in gender-studies classes who seems to be there more to target his prey than expand his consciousness. Sexual Diversity seems to be a standard offering at NYU and though Justin-Jinich was enrolled in the summer 2007, a syllabus for a previous class gives a sense of pretty good sense of what was covered. It mentions the "intractable nature/nurture debate." Essay question: What made Justin-Jinich's killer snap?

It's not clear why Stephen Morgan didn't flee in the car he had parked outside the campus bookstore where he apparently shot Justin-Jinich. The working theory is that it may have been hemmed in by emergency vehicles.

Anyway, he was actually interviewed by a cop as a potential witness to the crime outside the campus bookstore where Justin-Jinish was shot; cops realized he was the shooter and launched a manhunt only after his name was mentioned by Justin-Jinich's family, and police realized they had spoken with him at the scene.

It's not clear that Morgan actually dated his victim, as earlier news reports indicated; instead he attended a summer "Sexual Diversity in Society" class with her at NYU before sending 38 harassing email messages and inundating her with phone calls. The two both come from Colorado so there's an outside chance they knew each other there.

The victim reported the harassment to police but declined to pursue it.

It's not yet clear how Morgan was caught. Officers are no doubt smarting over having Morgan him slip through their fingers once. But their fast response at least helped deter or block the suspect from the "Jewish Columbine" he planned in one of his journals. And that's one of the few positives in this tragedy.