😱A woman pushes her 3-year-old nephew into Lake Michigan, causing life-threatening injuries.
😡The woman shows no remorse and has a history of concerning behavior.
👶The 3-year-old boy is hospitalized and in critical condition.
🚓Prosecutors charge the woman with first-degree murder and aggravated battery to a child.
📹The entire incident is caught on surveillance cameras at Navy Pier.