Oien

One, Carey Oien of the FBI, testified that only "Caucasian" hair was found on the black running tights, panties and T-shirt found near Levy's remains.

Prison pen pal testified of Guandique's dead girl' letters Keith L. Alexander 2010

One, Carey Oien of the FBI, testified that only "Caucasian" hair was found on the black running tights, panties and T-shirt found near Levy's remains.

Prison pen pal testified of Guandique's dead girl' letters Keith L. Alexander 2010

A few moments later, Assistant U.S. Attorney Amanda Haines asked Oien to demonstrate how the knots would have been tied.

FBI expert on stand in Levy death trial Washington Post Editors 2010

Oien said the hair was similar to the hair from a comb found in Levy's Dupont Circle bathroom.

Prison pen pal testified of Guandique's dead girl' letters Keith L. Alexander 2010

"Each leg was tied in a knot," said Cary Oien, a hair and fiber specialist and senior scientist at the FBI's lab in Quantico.

FBI expert on stand in Levy death trial Washington Post Editors 2010

Stepping into the well of the courtroom, Oien tied a knot over Haines's forearm.

FBI expert on stand in Levy death trial Washington Post Editors 2010

Maria Hawilo, one of Guandiquie's defense attorneys, and Haines each sought to use the testimony of Oien to bolster their case, with Hawilo highlighting the fact that none of the evidence recovered had been linked to Guandique, and Haines noting that an assailant would not have necessarily shed any hair in the course of a struggle.

Levy's remains shown to jurors Washington Post editors 2010

Oien was the first witness on the sixth day of testimony in the trial of Ingmar Guandique, the man charged last year with killing Levy, who disappeared in 2001 and whose remains were discovered a little over a year later in Rock Creek Park.

FBI expert on stand in Levy death trial Washington Post Editors 2010

Earlier today, an FBI forensic expert, Cary Oien, testified about hair and fibers retrieved from tights, panties and other garments found in Rock Creek Park and believed to have been Levy's.

Levy's remains shown to jurors Washington Post editors 2010

One, Carey Oien of the FBI, testified that only "Caucasian" hair was found on the black running tights, panties and T-shirt found near Levy's remains.

Prison pen pal testified of Guandique's dead girl' letters Keith L. Alexander 2010