I'm so sorry... it's like ripping your heart clean out. But wow, that is a terrific age, and he looks like he has been very happy and all. He will have appreciated the love and care he has had.. It is SO hard to say goodbye. Hugs to you- that is always the worst decision to have to make, but unfortunately a necessary one when it comes to animal ownership.. or should I say partnership. You will always miss him- think of all the joy he has brought to you, and probably you to him!! Wish I could make the heartache go away...