How does Hercules dies.. Who kill him and why?

Answer 1

Deianeira, Hercules' wife, made him a shirt spread with the blood of a centaur whom Hercules had slain with an arrow. Before he died, the centaur gave his blood to Deianeira with the false promise that it would keep Hercules faithful to her. Deianeira, suspecting Hercules was in love with another woman, gave him the shirt. The Hydra poison in the blood burned Hercules' skin to the bone. However it could not kill him so he built a fire and burned himself in it. That, my friend, is why Hercules is dead.

Answer 2

ACCORDING TO THE GREEK MYTHS,Hercules went to the town of Thebes and married Deianira. She bore him many children. Later on in their life, the male centaur, Nessus, abducted Deianira, but Hercules came to her rescue by shooting Nessus with a poison tipped arrow. The dying Nessus told Deianira to keep a portion of his blood to use as a love potion on Hercules if she felt that she was losing him to another woman. A couple of a months later, Deianira thought that another woman was coming between her and her husband, so Deianira washed one of Hercules' shirts in Nessus' blood and gave it to him to wear. Nessus had lied to her, for the blood really acted as a poison and almost killed Hercules. On his funeral pyre, the dying Hercules ascended to Olympus, where he was granted immortality and lived among the gods.