Prosecutors: South Dakota man strangled his mother, boy

SIOUX FALLS, S.D. - Prosecutors say a 24-year-old South Dakota man strangled his mother and a 7-year-old boy in a mobile home.Heath Otto, of Sioux Falls, appeared in Minnehaha County court Monday on two counts of first-degree murder. Bond was set at $5 million dollars cash only, although Otto's public defender reserved the right to argue bail later.Otto is accused of killing his mother, 48-year-old Carol Simon, and the boy. Authorities say Otto set off an alarm just before 1 p.m. Sunday and was