Former WWE star Umaga, real name Edward Fatu, has died at the age of 36 after suffering a second heart attack, wrestlingobserver.com is reporting.  Fatu was taken to a Houston-area hospital after his wife found him unconscious with blood coming from his nose earlier today.He had returned from Australia just a few days ago after wrestling on the Hulk Hogan tour of the country.  He was released from WWE in June after failing a drug test and refusing the WWE’s offer to attend drug rehab.  He is probably best known for headlining a Wrestlemania against Bobby Lashley in a match where WWE owner Vince McMahon put his hair on the line against the hair of Donald Trump.