Malala also went on to found the Malala Fund, a nonprofit organization that supports girls' education around the world through grants and partner collaborations. She also released a book on Tuesday, "I Am Malala," about the attack.
Malala said real Islam teaches real forgiveness.
"It's not important if they are prosecuted or arrested," Malala said. "He would have a family...I'm not a cruel person. I want to fight with them. I want to fight against them, but through my voice and through my pen, not with guns."
Malala and her family remained in England, where she is now attending school and adjusting to life in a culture so different from the one she knew in Pakistan.
"I don't know what would I do in future," Malala said. "I'll decide it later."
She hopes to one day return to her home.
"There's no place like home," Malala told Diane Sawyer. "And I do miss my home."