Probable cause hearings to determine whether to try two juveniles involved in a June 10 killing in Ashland as adults have been set for August. According to RichlandSource.com, Samuel Castle and Michael Watson, both 17, face charges of complicity to aggravated murder, complicity to aggravated robbery, and complicity to attempted murder, along with firearm specifications. Gregg Kuzawa, 19, pleaded not guilty Friday to all 13 charges he faces for his role in the incident.