Not many details were known at press time but here is the information we were able to gather. 

Launch Media is reporting �Entwistle suffered a heart attack in his hotel room at the Hard Rock Hotel And Casino in Las Vegas, according to Clark County (Nevada) Fire Department spokesperson Bob Leinbach. 

��Paramedics went to the Hard Rock Hotel sixth floor at about noon,� he said. �They found a man who had died, they say, in his sleep. No struggles, no drugs, no violence, and the coroner went over and got the body and took it over to the coroner's office.�"

Reuters reported the following: �With Entwistle's death, The Who are down to just two original members, singer Roger Daltrey and guitarist/songwriter Pete Townshend. Original drummer Keith Moon died of an accidental pill overdose in 1978.� 

�Entwistle, who was born in the London suburb of Chiswick on Oct. 9, 1944, joined Daltrey in a forerunner of The Who in the early 1960s while working as a tax clerk.� Said Reuters in their report of Entwistle�s death on Thursday. �The band ultimately took shape in 1964 and made an immediate impression with its �Mod� stylings and its expensive habit of trashing all its stage equipment after each set.�

The band was set to begin a North American tour on Friday. 

more on The Who