'Strangulation is deliberation': State, prosecution hand Kylr Yust murder trial to jury Kylr Yust, accused of murdering Kara Kopetsky and Jessica Runions, took the stand in his defense Wednesday in a Cass County courtroom. and last updated 2021-04-14 23:50:04-04 KANSAS CITY, Mo. â The prosecution and defense in Kylr Yust's double-murder trial took very different approaches in closing arguments Wednesday afternoon. After hearing testimony from the defendant himself, jurors heard final perspective from each side before the case was handed over to them for deliberation. The prosecution was up first, and assistant prosecuting attorney Julie Tolle appealed to the jurorsâ reason and common sense.