As Harvard’s leading scorer (42 points- 20 goals, 22 assists), senior assistant captain Alex Killorn, of Montreal, Quebec, was prepared to make a play by any means necessary, even if it meant stepping outside the boundaries of his role as the center of the Crimson’s top line. And that’s precisely what Killorn did, morphing into a puck-stopping defenseman as he sacrificed his 6-foot-1-inch, 207-pound body to make a timely blocked shot on a Yale power-play bid in overtime. It propelled the Crimson to a 3-2 win in double overtime last Saturday, which enabled Harvard to even, and eventually win, its best-of-three series against Yale.