Victoria Moreno is charged with first degree murder.
Charges upgraded against aunt who allegedly pushed 3-year-old nephew into Lake Michigan at Navy Pier
Police said she pushed three-year-old Josiah Bell Brown the lake in September, near Navy Pier. The boy died a week later.
The incident was captured on surveillance video, prosecutors said.
According to her defense attorneys, Moreno has been diagnosed with depression, anxiety and bipolar disorder, a condition for which she takes medication.
Prosecutors said Moreno took the child to the pier without his family's knowledge. She's being held without bail.