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.
Former NHL player Steve Montador died early Sunday morning at age 35. Peel Region Police, who received an emergency call at approximately 2 a.m., say Montador was found unconscious in his home in Mississauga, Ontario, and was later pronounced dead. No foul play or suicide was suspected, according to police.