Coop - maybe you could visit his grave. It might help give you some closure. You can even talk to him while you're there and tell him what he meant to you. Having your own little memorial service would help you and honor him.
I know loss sucks. I lost someone close this year too. Now that I'm going through this with my husband, I wish every day that she was here to talk to. But, I know she's here in other ways.
Take care and know that we are all thinking about you.
The woods are lovely, dark and deep. But I have promises to keep,
And miles to go before I sleep, And miles to go before I sleep.