I don’t know what else to say other than I am so sorry and sad for Yunze Sun’s family.
Update 19 July 2011: from an email from WAHS:
The Counseling Department will provide counseling for any student who would like to receive these services tomorrow (Wednesday, July 20) from 10 A.M. until 4 P.M. at the school. Students should simply come to the school and report to the School Counseling Office.
A Memorial Service to honor James will be held in the WAHS auditorium on Saturday, July 23, at 4 P.M. The family is working on plans for this service, but is most interested in providing an opportunity for friends, classmates, and school staff to offer reflections about James.