Greenville Police say a custodian has been stabbed to death at a local elementary school. Police say 43-year-old Willie Dean of Greenville was stabbed at Susie Trigg Elementary School on Tuesday and died less than 45 minutes later. Police say no children were in danger during the assault, although the school was put on lockdown while officers searched for the stabber. They made a quick arrest of 32-year-old Kevin Boston of Greenville. A motive is not known at this time.