Tim Tebow is in mourning after the death of his father, Bob Tebow. "Heaven ushered in a hero of the faith last night as my Dad was welcomed home!" Tim, 38, wrote via Instagram on Friday, April 24. "Many will say sorry for your loss, but the truth is he's not lost. We know exactly where he is. He's home. Forever!" In his emotional tribute on social media, Tim shared a collection of photos with his dad, who was 78, over the years. The former NFL quarterback also celebrated Bob's Christian faith.