Another episode of "DNA is not always from the killer"...

Foreign DNA found under the fingernails of William J. Jennings did not come from the man accused of killing him, a Johnson County District Court jury was told Monday.

Also, a bloody hair found on a stairwell in Jennings’ Shawnee home did not come from that man, either, said John T. Wilson, a forensic chemist who testified on behalf of the defense.

Wilson was the last person to testify in the second murder trial of music professor David Stagg, which got under way Feb. 26.
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Prosecutors contend that Stagg killed Jennings and forged a suicide note to deflect the blame from himself. Jennings had tried to commit suicide before, according to testimony.

Wilson, who retired in 2003 after nearly 30 years with the Kansas City Regional Crime Laboratory and testified at Stagg’s first trial, said the DNA found under Jennings’ fingernails was not enough to identify any individual. However, he said, it was enough to eliminate Stagg as a suspect.

Testing on the hair, which was done after the first trial, also ruled Stagg out, he said.