A Bosnia bodybuilder live-streamed the murder of his ex-wife on Instagram today before going on a shooting rampage, killing two others and then himself.   The man, identified by as Nermin Sulejmanovic first shared an extremely disturbing video on Instagram on Friday morning, August 11, telling viewers that they would see a murder live.   The video then shows him taking a gun and firing a bullet into the forehead of a woman. The couple’s baby daughter can also be …