User blog comment:Zolnir/RWBY Episode 5 Reviews & Assumptions/@comment-14843841-20130816182833

About Jaune and Pyrrha,

From what I've seen and thought about so far, I don't think they have met before. My personal theory is that either Jaune's Granpa or his parents were famous hunters who either retired or died in service. They'd be Pyrrha's heroes and reason why she wants to be a huntress herself. Since Pyrrah would know a lot about her idol, she'd recognize Jaune in the middle of the crowd and want to meet him.

Supporting evidence would be the scene where Jaune is looking at the statue in the opening with team JAUN and Pyrrah puts a hand in his shouldr for reassurance. Those people in the statue could, again, be either be his Grandpa or parents.

Also, Jaune's sward was inherited from his grandpa, which makes me incline more to the Famous Hunter!Granpa theory, while Jaune talking about much what his parants say hints he looks up to them a lot. The reason would most likely be because they are heroes.