In front of one of the largest crowds that he can remember watching him out on the water, Will Crain pushed aside nerves to win the race of his young life. A day later, he said he couldn’t wait to tell everyone about it. Crain, a Johnson High senior, won a gold medal Thursday in the 500-meter singles kayaking, then earned a silver medal in the 200-meter race Friday at the 2015 Special Olympics World Games in Los Angeles.