KANSAS CITY, Mo. — A man charged in the fatally shooting a 33-year-old outside a Kansas City gas station in broad daylight last week was seen by cameras and witnesses walking back inside to purchase gasoline before fleeing the scene, according to court records. Justin J. Owens-Harrell, 31, is charged in Jackson County Circuit Court with involuntary manslaughter, armed criminal action and unlawful firearm possession. He is accused of killing Skyler Smith outside of the Gulf gas station and Big B’s convenience store in the city’s Foxtown East neighborhood on Friday. According to court records, K…