In 1996 , Becker lost the ability to speak , and he now communicates with his eyes via a system developed by his father .
Becker 's performing career was cut short by amyotrophic lateral sclerosis ( ALS ) .
In 1996 , Becker lost the ability to speak , and Becker now communicates with Becker 's eyes via a system developed by his father .
Becker 's performing career was cut short by amyotrophic lateral sclerosis ( ALS ) .