Mark Kirton is gone. Mark Kirton, 67, who played in the NHL in the 70s and 80s, died on Sunday. From 2018, he fought with ALS nervous system. ALS affects the nerve cells of the brain and spinal cord, causing loss of muscle control and eventually loss of physical, eating and speech loss, paralysis and respiratory failure. The average life span of a person with the disease is 2-5 years.
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