(CBS News) BOSTON -- Tracy Munro had come to the Boston Marathon to cheer on her friends and family. She was swept up in the crowd running from the blasts but stopped.
"You know, I really didn't have a plan," Munro says. "I didn't know -- I had no idea what to expect."
Munro says when she went back, "I went straight over to this child, and this man was working on -- you know, working on her wounds. Her leg had been blown off. And I just sort of -- I just knelt down close to her and I rubbed the side of her face and I tried to hold on to her hand and just rub her face and I said, 'Hi, baby, just look up at me. Look -- look in my eyes. Come on, come on, it's going to be OK. What's your name? What's your name?' And she looked up at me and said, 'Jane.' I'll never forget it."
Firefighters took the little girl to the hospital. Munro remembers seeing a little boy, who turned out to be Martin Richard. She was caught on amateur video wandering in a daze, trying to find her family.
Watch: Young bombing victim becomes symbol of Boston tragedy, below.
We asked her when she realized that Martin Richard, who was killed in the blast, was the brother of the girl she helped.
"I hadn't watched any news at all," she says. "And then my dad sent a message to -- to us just saying that they've confirmed that the little boy who died was Jane's brother. And my heart almost stopped. Like, it just -- I just, like, I immediately went online to see, like, to see his face, and it really was him. It really was him that I saw."
Asked what she would like to tell Jane's family, Munro says, "I want to tell them that their little girl was very, very brave -- at an absolutely horrific time."
Two stories of bravery in a city discovering how much its people care for each other.