Andy Sosa

Freed from his wheelchair, Andy Sosa, 10, is able to walk with the help of his “robot” and physical therapist Cynthia Alfaro.

Freed from his wheelchair, Andy Sosa, 10 of Union City, N.J., is able to walk with the help of his “robot” and physical therapist Cynthia Alfaro. Photo by Karen Stamm.

Freed from his wheelchair, Andy Sosa, 10, is able to walk with the help of his “robot” and physical therapist Cynthia Alfaro.