John Cornic News Today

>> reporter: john cornic has als, better known as lou gehrigs disease. the nerve cells in the bin and sprain that control muscle movement, destroyed. when the brain can no longer tell muscles to move, those muscles wither away. eventually the diaphragm as well, which pulls and pushes air into the lungs. think about that. the brain is fine. but you simply cannot breathe. john knows there is no cure for als, and so does his wife, and his two daughters. >> my first thoughts were, i hated for my gir...

No one knows what will happen. heres how john got to this place. >> two years ago i was running, playing golf. >> reporter: gradually, literally, he began to lose it. >> i started tripping and kind of like a foot drop and started catching my foot on bricks and curbs and started losing my balance initially. and then developed a limp in my right leg. i lost the dexterity where you cant button buttons, tie shoes. i can kick a little bit, but i cant really pick my legs up. >> reporter: john cornic h...