By Allison Scarbrough, News Editor HART — A 24-year-old Shelby man who was involved in an hours long standoff with police after allegedly slitting another man’s throat is being held in the Oceana County Jail on a $1 million cash bond, according to court records. Logan Nathaniel Duvall was arraigned in Oceana County’s 79th District Court Tuesday morning, July 2,…