Stop bickering about the VT shooting. It was horrible, and not Westfield's fault. It happened way after they were in control. If it had happened at Westfield, that would be a diffrent story. However, it happened years ago and isn't even affiliated with what this thread was originally talking about.
Anyway, "really?" is right about the Tech guy. Most media did report that, aside from how he was bullied in middle and high school. See research below from what I took from the first page I of google results for "virginia tech massacre" and "seung-hui cho" as proof if you want, just get back to issue at hand on the thread, please.
"Cho's family sought therapy for him, and he received help periodically throughout middle school and high school.[1] Early reports also indicated Cho was bullied for speech difficulties in middle school, but the Virginia Tech review panel could not officially confirm this.[47] High school officials worked with his parents and mental health counselors to support Cho throughout his sophomore and junior years. Cho eventually chose to discontinue therapy. When he applied and was admitted to Virginia Tech, school officials did not report his speech and anxiety-related problems or special education status because of federal privacy laws that prohibit such disclosure unless a student requests special accommodation.[46]"
http://en.wikipedia.org/wiki/Virginia_Tech_massacre#cite_note-August_panel_report-0
"In 1999, during the spring of Cho's Eighth grade year, the Columbine High School massacre made national news. Cho was transfixed by it. "I remember sitting in Spanish class with him, right next to him, and there being something written on his binder to the effect of, you know, ' 'F' you all, I hope you all burn in hell,' which I would assume meant us, the students," said Ben Baldwin, a classmate of Cho.[19] Also, Cho wrote in a school assignment about wanting to "repeat Columbine." The school contacted Cho's sister, who reported the incident to their parents. Cho was sent to a psychiatrist.[26]"
"Cho attended secondary schools in Fairfax County, including Stone Middle School in Centreville[15] and Westfield High School in Chantilly,[8] and by eighth grade had been diagnosed with selective mutism, a social anxiety disorder which inhibited him from speaking.[20]"
http://en.wikipedia.org/wiki/Seung-Hui_Cho#Behavior_in_middle_school_and_high_school
The theory is built from an analysis of “the life of Cho along the five dimensions of human growth and development:”
Physically: “Cho was average to below average. He was frail and sick as an infant/toddler. Even the autopsy report remarked about his lack of muscle for the body of a 23-year-old male.”
Emotionally: “His growth was stunted as a result of his ‘selective mutism.’ ”
Spiritually: “He showed little interest and dropped out of his church before experiencing a growth in faith.”
Socially: “He could not function at all. He was virtually devoid of social skills due to his extreme social anxiety disorder.”
Intellectually: “His strongest attribute. … He was average to above average in his academic pursuits, but even these afforded him little or no consistent or positive sense of achievement based on the feedback from his peers or others.”
http://thelede.blogs.nytimes.com/2007/08/30/seung-hui-cho-who-is-this-man/
Oh, and while Chantilly may be similar to Westfield in terms of population, the building is far smaller in size than Westfield, therefore making it somewhat easier to maintain order.
When they redistricted the boundaries, they sent kids who were feeding from mainly the herndon area into Westfield (those who had gone to Floris ES and Carson MS) to SLHS. Cho and the other killer, as well as the druggies that were recently exposed, all lived in the Centreville district area of Westfield. So, if you want to push the envelope even farther, they didn't really do anything in terms of making other FCPS high schools "safe" from WHS kids or whatever you were getting at when you said "at least they redistricted the school boundaries and those kids no longer go to Tilly and other schools in the area", isn't really valid anyway based on where the rate of crime/catastrophe is coming from in the County.