It is undergoing testing at the FBI laboratory in Washington, but the authorities have said it resembles the kind of high-powered rifle used in the slaying. Clark said other evidence that prosecutors might present includes a strand of human hair found at the wooded firing site that has a  high likelihood  of (matching) Kopp's hair and testimony from a jogger who spotted Kopp's car near Slepian's house at 6 a.m. ten days before the shooting.  
 Verb: matching
Yes