16-year-old accused of stabbing DSM Subway employee pleads not guilty Share Updated: 7:05 PM CDT May 23, 2021 16-year-old accused of stabbing DSM Subway employee pleads not guilty Share Updated: 7:05 PM CDT May 23, 2021 Hide Transcript Show Transcript >> NEW TONIGHT, WE’RE GETTING OUR FIRST LOOK AT THE PERSON CHARGED IN THE STABBING AT A DES MOINES SUBWAY RESTAURANT. 16-YEAR-OLD BRIAN SCHNAT-HORST FACES CHARGES OF FELONY ATTEMPTED MURDER AND WILLFUL INJURY. HIS CASE IS BEING TRIED IN ADULT COURT. POLICE SAY HE STABBED CONNOR KERNES BACK ON APRIL 7. KERNES IS STILL IN THE HOSPITAL AND DOCTORS SAY HE MAY NEVER FULLY GET LOCAL BREAKING NEWS ALERTS