The conspirators barricaded themselves inside their building and awaited the assault from a battalion of the German Army (Galante 227). General Fromm and his men took control of the building, most likely so that it would appear that Fromm was a hostage and not in any way involved with the coup (Duke 38).
General Fromm informed Claus von Stauffenberg, General Olbricht, and two other key conspirators that he had ordered them all to be court-martialed in the name of the Fuhrer (Galante 228). Knowing they were all loose ends that could testify to his involvement, Fromm immediately ordered all four to be executed by firing squad (Duke 38). General Beck, who was one of the generals that was supposed to seize command of the German Army, shot himself twice before being shot and killed by a Sergeant (Baigent 56).
Hitler used the last attempt on his life as an excuse to rule Germany military for the remainder of his life with an iron fist (Duke 38). Henning von Tresckow, Erwin von Witzleben, Erich Fromm and anyone else suspected of being a part of the attempted coup were either tried and executed or took their own lives before trial (Simkins). Around 4,000 people are thought to have been executed by the German government for their involvement in the coup (Short