SIOUX FALLS, S.D. (KELO) -- Police are asking the public's help in identifying a man who robbed someone at knifepoint Saturday. At Monday's police briefing, Sioux Falls Police spokesman Sgt. Aaron Benson said the robbery happened just after 10:30 p.m. Saturday near 41st Street and Gateway Boulevard. The victim said he was a driver for [...] ...read more read less