Another day, another Batman v Superman: Dawn of Justice-related rumor. This particular tale is quite interesting because, if it is true, then someone in an important position will die in the film, paving the way for an individual DC story arc to take place.
According to a paid extra on the set of Batman v Superman, someone will kill the President of the United States, though, it is not certain who could be capable of doing this. Furthermore, the extra claimed he took part in a scene that he describes as the President's funeral.
The extra went on to add that he was part of a flashback scene that involved a young Bruce Wayne at his parent's funeral, so it appears we could be in for two or more funeral scenes with this movie when it comes out in 2016.