BATON ROUGE, LA - JUNE 4: A Forensic Analyst prepares DNA samples to be placed in a genetic analyzer at the Louisiana State Police Crime Lab June 4, 2003 in Baton Rouge, Louisiana. The analyzer labels the pieces of human DNA with different colors so genetic markers can be detected. DNA evidence processed from this state police crime lab led to the identification of Derrick Todd Lee as the suspected serial killer of several women in southern Louisiana. (Photo by Mario Villafuerte/Getty Images)
