A weeklong preliminary hearing concludes Friday for the man accused of killing conservative activist Charlie Kirk. Prosecutors aim to show they have enough evidence against Tyler Robinson to proceed to a trial. The 23-year-old Robinson is charged with aggravated murder in the Sept. 10 assassination of Kirk on the Utah Valley University campus. Prosecutors are seeking the death penalty. Robinson’s lawyers plan to call a final witness as they try to raise doubts about the prosecution’s case. State District Judge Tony Graf is not expected to rule immediately.