Fiancée's great aunt and uncle passed away, and the news is making my family really uncomfortable.

I 27 M got engaged 6 weeks ago. Yesterday he family went on a fishing trip together. All was going well, great fishing trip, then the funeral news were announced in the town paper. My fiancée's great aunt and uncle passed away in a fire. The news is making my family really uncomfortable as they passed away under weird circumstances and my dad and grandpa were friends with them.