A woman accused of pushing her 3-year-old nephew off Chicago's Navy Pier and watching him drown in Lake Michigan has now been charged with murder following the child's death. Victoria Moreno, 34, was arrested last month. She was initially charged with attempted first-degree murder and aggravated battery to a child under 13, but the charge was upgraded to first-degree murder, Fox 32 Chicago reported.Prosecutors said on the morning of Sept. 19, Moreno stole the keys to the family's truck in suburban Des Plains and took off with the boy when no one was looking. She was not allowed to drive...