In Britain 'dumb' is seldom used to mean stupid. It was mostly only used to mean mute e.g 'deaf and dumb'. However 'dumb' in the mute sense is probably politically incorrect nowadays, a bit like calling a short person a 'dwarf'.
Luis Carlos MontalvÃ¡n at a book signing in Coral Gables, Fla., in 2011, with his service dog, Tuesday. Luis Carlos MontalvÃ¡n, an Iraq war veteran and best-selling author who toured the country with his service dog, Tuesday, as an advocate for soldiers with post-traumatic stress disorder, died on Friday in El Paso. He was 43. He was found dead in his hotel room.
We have just received the most tragic and awful information. At 4.25 p.m. (03.55 p.m. EST) today March the 5th, President Hugo Chavez Frias died, Vice President Nicolas Maduro announced in a televised address, his voice choking. It's a moment of deep pain, he said in the address, in which he appeared with senior ministers.