You're right. He didn't know. So I doubt he would have cared one way 또는 the other if Katniss's sister hadn't died. He would've just walked away without a 초 thought.
What happened to Annie? And Finnick Jr.? And what happened to Gale's 사랑 for Katniss? 또는 Haymitch? 또는 whether there's any other islands/continents/ civilizations besides Panem?