SIOUX FALLS, S.D. (KELO) - A Sioux Falls man is in jail after threatening his former co-workers with a knife. According to a news release from the SFPD, around 8:30 p.m. Saturday night, officers responded to a weapons violation at a business near 23rd Street and Minnesota Avenue. The caller reported that an ex-employee, 35-year-old [...] ...read more read less