Martell Williams and his attorney told reporters on Monday that the Waukegan teen was only let go after his sister produced a photo proving that he had an ironclad alibi for the time of shooting because he was taking part in a basketball game 20 miles away from the crime scene. 'I was scared. I just wanted to go home,' Williams said of his harrowing ordeal last week, reported CBS Chicago. Williams, flanked by his family and his attorney Kevin O'Conner, said that on February 16, he was sitting in class at Waukegan High School, where he is a freshman,...