Forensic evidence key in Plishka murder trial

Wayne County District Attorney Michael Lehutsky said Mr. Plishka, 47, Onley, Va., is the sole killer in part because recent DNA testing of blood found on a .22-caliber Magnum Ithaca rifle seized from Mr. Plishka’s former Wayne County residence in 1992 cannot exclude Ms. Ronning from “being the source of that DNA.”