Actions of comfort weren't exactly Jasper's strongest talent, but even he in all of his great grumpiness had sympathy for Myrtle right now. He understood all too bloody well. Awkwardly he reached out and patted her on the shoulder. Jasper wasn't incapable of kindness, damnit. He just didn't dole it out unless he had a good reason.
Chewing his lip in thought for a moment, Jasper then revisited the details of his second year, explaining about the blood on the walls and the basilisk and how it had Petrified students. "Someone said it happened for the first time fifty years ago and that's when a girl died. They found her in a bathroom 'cos she'd gone in there after some other girls were teasing her or something."