The DNA found at each crime scene actually came from a female worker in the factory that manufactured the cotton swabs used to collect evidence.

事实上，在犯罪现场发现的DNA都来自生产采证棉签的工厂的一名女工。

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Guandique repeatedly denied involvement in her murder, and prosecutors acknowledged a lack of DNA evidence linking Guandique to the crime and a lack of witnesses.

CNN: New hearings in Chandra Levy case add to mystery

If the justices rule for King, more than 1 million DNA profiles that have been stored in a federal database for matching with future crime scene evidence may have to be purged and others will never be collected, leading some repeat offenders to go free, advocates say.

NPR: Court Takes Up Question Of Arrestee DNA Sampling

The police have assembled a case against the accused men based on 80 witnesses, information gleaned from confessions of some of the accused, and DNA evidence linking all of the alleged perpetrators to the crime, according to a police document reviewed by The Wall Street Journal.

WSJ: Trial Court Proceedings to Begin in Delhi Rape Case