‘Fred Korey, the executive director of Buffalo’s “Hasek’s Heroes,” is suffering from Lou Gehrig’s disease. Formally known as amyotrophic lateral sclerosis, the rapidly progressing neurological disease claims everyone afflicted, including the Hall of Fame baseball player who became the name and face of the malady. “I found out about four months ago, and unfortunately his health is not very good,” Hasek said Saturday, adding that he hasn’t been able to speak with Korey because his friend has lost the ability to talk. “It’s a very sad thing.”‘