:( <-That sums up this post.
I got a message today from Jessa's raisers. It is just easier for me to copy/paste:
"Last night we received the very sad news that Jessa, the black lab Guide Dog puppy that we raised, injured her knee at the Guide Dog campus. She was playing with the other dogs and jumped up to get some water from a hose. When she came down, she blew her knee out. They don't yet know the extent of her injuries, but she will probably require surgery. So, Jessa will not be able to be a breeder or a Guide Dog."