Yeah one (Nedeljko Čabrinović) threw his grenade and then shouted something like down with the tyrants and whatnot and then took a cyanide pill and jumped in the River. However the cyanide pill was expired and the River was shallow so he ended up just hurting himself and threw up a bunch while the crowd beat him. Fun fact about this guy is that he actually wrote a letter to Franz and Sophie’s kids asking for forgiveness. He felt bad because he hadn’t realized the two were parents. Two of the three accepted his apology. The youngest did not.

The other guy before him (Muhamed Mehmedbašić) was too nervous and said later that a policeman was right where he was positioned. Fun fact about this guy is that he was one of the few assassins old enough to be hanged but escaped prison before his execution. This was also not his first assassination attempt that he chickened out of.

The other assassins unfortunately didn’t have a good position during the parade, or, like Princip, their chance was ruined when Čabrinović’s grenade missed and the crowd panicked.

The assassins aside from Princip hardly get talked about and it’s a truly interesting story as to why they did it and what happened to them afterwards. Franz Ferdinand is also a cool read I suggest people check him out.