The wife of the specialist on Russian intelligence who was shot last week challenged reports yesterday that her husband had been robbed, but she said she didn't know if the incident was a brazen street crime or the result of his criticism of the Kremlin. In a brief interview at the couple's Adelphi home, Elizabeth Joyal said reports that Paul Joyal's wallet and briefcase were taken were false. She didn't know of any possible motive for Thursday's shooting outside their home in what she said was a normally safe area. "We really have no idea what the reason was," said...