http://youthviolence.edschool.virginia.edu/juvenile-violence/juvenile-psychopathy.htm

http://www.crimelibrary.com/criminal_mind/psychology/index.html

http://www.ornl.gov/sci/techresources/Human_Genome/elsi/forensics.shtml#1

http://del.icio.us/G4_ESSG

http://news.bbc.co.uk/2/hi/health/6198704.stm