Should I come to my 10th year highschool reunion or my Uncle's Funeral?

Our 10th year Highschool Reunion has been planned many many months ago.. The date is this coming Saturday and its an overnight event at a resort. I am very very excited about this reunion. Now, this morning, my uncle from my hometown had a heart attack and died.. The last day of Funeral will be on Monday.. And I will be home in our hometown on Friday night. So if I'm coming to my reunion I won't have time for the funeral anymore. And I'm a bit confused where to go.. Should I just cancel my attendance at the reunion and stay with my family for the funeral or just attend the reunion and be on the funeral on Sunday night when I get back from the reunion??