NviJjAothsr of Thrtt fatally Shot: SIOUX FALLS, S.D. lt;W -a mother of throe young children was la tally shot yesterday While working In a downtown department store here.Police are holding the victim’s husband, whom they say came to the jail and admitted the shooting shortly alter itt occurred LMrs, June Crook, 32. Chancellor, S.D., was killed. Held \ was Jodie Robert Crook. 29.1 an Omaha, Neb.; bartender. .1•Authorities said Crook told jl them he had no explanation 5 lor 1 he .shooting. They said ^ Mrs. Crook was In the process of divorcing the suspect.