(CBS) BURBANK, Ill. A 15-year-old southwest suburban boy and his friends are wondering what could have made a group of teens beat him, then take his prosthetic leg and use it as a weapon on a friend who came to his rescue. As CBS 2’s Kristyn Hartman reports, D.J. Choate of Burbank is now without his leg after losing it in a scuffle his friends call unthinkable. Choate and some friends were outside near 79th Street and Nagle Avenue when a group of teens drove past and almost hit him on Monday morning just after midnight. Choate said he and...