what events preceded this?
Berlin was bombarded on 20th April and in the conference of 22 April, it was declared that the war was lost.  Hermann Göring was sacked from his duties and arrested on Hitler's orders.
Death of Adolf Hitler
Berlin was bombarded by Soviet artillery for the first time on 20 April, which was also Hitler's birthday. By the evening of 21 April, Red Army tanks reached the outskirts of the city.

At the afternoon situation conference on 22 April, Hitler suffered a total nervous collapse when he was informed that the orders he had issued the previous day for SS-General Felix Steiner's Army Detachment Steiner to counterattack had not been obeyed. Hitler launched a tirade against his commanders, calling them treacherous and incompetent, culminating in a declaration—for the first time—that the war was lost. Hitler announced that he would stay in Berlin until the end and then shoot himself. Later that day, he asked SS physician Werner Haase about the most reliable method of suicide. Haase suggested the "pistol-and-poison method" of combining a dose of cyanide with a gunshot to the head. Luftwaffe chief "Reichsmarschall" Hermann Göring learned about this and sent a telegram to Hitler asking for permis
who shot themselves at end of 13 reasons why UNANSWERABLE what is death of hitler? Death of Adolf Hitler by suicide.
wiki:14039956
Death of Adolf Hitler [SEP] Preceding events
By early 1945, Nazi Germany was on the verge of total military collapse. Poland had fallen to the advancing Soviet Red Army, which was preparing to cross the Oder between Küstrin and Frankfurt-an-der-Oder with the objective of capturing Berlin to the west. German forces had recently lost to the Allies in the Ardennes Offensive, with British and Canadian forces crossing the Rhine into the German industrial heartland of the Ruhr. U.S. forces in the south had captured Lorraine and were advancing towards Mainz, Mannheim, and the Rhine. German forces in Italy were withdrawing north, as they were pressed by the U.S.