You have a lot of emotions going on brother hard to say the right things in this instance but you are in the right spot to step on your toung rather than at a function with high emotions!
I feel your loss as we are dealing with a family member (dog) that has beaten the most uncommon sickness and is now stricken with cancer, seems like over night.. the kids and gf are taking it to hard for me to show my sorrows.
But I can duck out for a minute to the garage and get the right things in the head to say when I return.. make sure you have your moment to vent here there but make sure you make time for You!
Congrats on your boys marriage! Hope the day is fun and lots of friends and family to meet and rejoice the day!!
Happy father's day bubbas4570!