As April began, Baltimore Mayor Catherine Pugh, suffering from pneumonia and under intense stress due to a growing scandal, announced she would go on leave — but vowed to return to office once her health improved.

A month later, Pugh’s attorney held a 96-second news conference without her on Thursday. He announced her resignation and ended Pugh’s political career. 

How did Pugh — known for her strong-willed insistence that her way is right — conclude that she needed to resign?