PROVO, Utah (AP) — Charlie Kirk’s parents and his widow, Erika Kirk, will attend a key hearing in his murder case next week in Utah, according to a person familiar with the situation who spoke on condition of anonymity because they were not authorized to speak publicly.

Prosecutors will aim to show during the weeklong preliminary hearing that they have enough evidence against Tyler Robinson to proceed to a trial. The hearing, set to begin July 6, will mark the most significant presentation of evidence in the case so far — and the first time that Kirk’s family will be in the courtroom with the man accused of killing him.