WARNING: SPOILERS FOR THE HUNGER GAMES: MOCKINGJAY PART 2. IF YOU DO NOT WANT TO KNOW FUTURE PLOT DETAILS, DO NOT READ THIS JOURNAL.
The younger sister of Katniss, who begins the events of the series. Though drawn for the 74th Hunger Games, Katniss volunteered for her place, promising to protect her.
However, the war in the Capitol escalates, as President Snow barricades a bunch of children around his headquarters. The rebels unleash parachutes with bombs, and they go off, killing several. Afterward, Prim runs into the scene, aiding to some of the wounded. Katniss barely notices her, and calls out her name. Once Prim notices and calls out Katniss' name, the second wave of parachute bombs explode.
The reason why this death affects me greatly is so: Because of it, the series is completely pointless! Katniss spends the entire series to protect her, only for her to die. That's...just terrible.
However, I can't find anyone to blame for this. The accidental murderer is completely ambiguous.
It's a shame the series had to end like this. I was really liking it, too.