UPDATE: Knife-Wielding Robber in Gorilla Mask Hits Cheyenne StoreUPDATE: Knife-Wielding Robber in Gorilla Mask Hits Cheyenne StoreA 14-year-old Cheyenne boy is in custody after allegedly robbing a south Cheyenne dollar store at knifepoint this (Thursday) morning.Joy GreenwaldJoy Greenwald