I'm heartbroken. We found out he was FIV positive shortly after we got him, but that doesn't make the loss any easier. He was only 1.5 years old. Hold your cats close for me tonight.
Edit: I fell asleep, so I'm sorry that I didn't respond to everyone. I'm very thankful to everyone for the kind words and support.
Very sorry to hear this. I'm sure you gave him a wonderful life for the time he had with you.