Glen Lake’s Joey Rioux hit his first home run in grand slam fashion during a pair of 15-0 mercy wins over Onekama on Tuesday.“It was crazy, my first home run ever in my life. That was really exciting ... I didn’t know at the moment,” Rioux said. “I didn’t even realize that I hit it that far.”The grand slam happened in the first of two games against Onekama when Rioux saw a slightly inside pitch…