This really made me very sad.I'm so sorry for the loss of your dear Avalanche.He looked so healthy and young in that picture.I'm sorry.May I ask how old or any guessess as to why?I hope I'm not out of line.Just curious in case this happens here .My heart goes out to you.He looked like a very special boy I know your hurting.Remember the fun times you've had with him to help ease the pain some.