Unlike the games in Liar Game, the rules of a Danganronpa game are sometimes made up or stated midway, which for me kind of sucks but is tolerable so long as the rules are consistent.
As far as I know, in Liar Game, the dealers have always accounted for all possible situations so whenever there are changes in the game, they state it outright. For example, in games involving voting, the dealers have stated what happens in the event of a draw.
In Danganronpa, can murders be committed by more than one person?
Monokuma stated (albeit midway) that accomplices after the fact are not considered as murderers for their purposes.
What if both A and B hold a single knife together and use it to stab C once resulting in C's death? In that case, am I correct that A and B are both the murderers?*
Perhaps Monokuma will adjust the rules, but I would like to know what are the stated rules regarding this, if any and from any media.
I'm done with the anime. Feel free to spoil other media, but please use spoiler tags.
*I'm trying to rule out trick cases like:
A and B use one knife each to try to kill C at the same time but then it will turn out that one of them was actually first or the second stab was the one that killed C.
A and B say they will kill C together, but B didn't hold the knife firmly so only A is counted as a murderer.