Sincerest condolences to him and his family.
I has been nearly three months and I still can't get used to the idea that my Mum isn't here anymore. I still talk about her in the present tense, I still get the impulsive urge to phone her when I'm out and about and see something she'd like or find amusing. It's a really strange place to be. You know what has happened, but you can't make it real in your mind.