In the disturbing text exchange, Robinson allegedly admitted to killing the 31-year-old conservative commentator, saying he did it because he had "had enough of his hatred."
Kuenzle says she was standing at the nurse's station with eight colleagues — and a patient on a stretcher nearby — when the news of Kirk's death broke.
Patel confirmed that Robinson is not cooperating with investigators, but noted that several people close to him — including his family — have been assisting in the case.
A chilling video of the attack quickly spread online, showing the father of two struck by a bullet, slumping forward, and collapsing as blood poured from his neck.
Fighting back tears and pausing frequently to steady herself, Erika urged Kirk's supporters to join a church, then made a heartfelt promise to her late husband.