On the bodies and the scene, there may be trace evidence linking to the suspect. This evidence helps the investigators gain knowledge of about the suspect. There may be a great deal of DNA evidence about the suspect, as well as, the victims, in this case, there were both. hair and clothe fibers transferred on to the victims by the suspect. These trace evidences can determine what sex, age, and race of the suspect; however, If the scene was not protected well against contamination, some of these traces of may be lost.
There were no fingerprints at the crime scene. However, there was additional blood stains, which belonged to neither victims'. Samples of blood, hair, and fibers at the crime scene were compared to samples from O.J. Simpson, Nicole Brown Simpson, and Ron Goldman. The defense claims that samples from the crime scene had been planted as part of a conspiracy or contaminated. As for conspiracy, I can not comment, however, there does seem to be a great possibility of contamination, because unauthorized personnel were in and out of the house and around the evidence. The prosecution stated that the DNA tests linked the additional blood stains to O.J. Simpson in the murders.
Upon the murder investigation and according to:http://emiko.igcom.net/~bruce/evidnce.html .The prosecution brought forth the following DNA evidence: Blood on exterior of Bronco door,. between Bronco and Simpson gate, on Rockingham driveway, In Rockingham foyer;. A right handed glove found at Rockingham;. Bloody socks from floor of Simpson's bedroom, A Blue plastic bag recovered from ground at Rockingham (from police report, it appears it was found somewhat near to bloody glove, on other side of chain link fence.). Blood on Rockingham driveway, Rockingham Walkway, Rockingham.