LOS ANGELES (Reuters) - Miami officials said on Friday reports of an arrest warrant issued for R&B singer Chris Brown are inaccurate, although the singer is still a suspect in the alleged theft of a mobile phone earlier this week. Brown, 22, who won a Grammy award earlier this month, is midway through a five-year probation after pleading guilty to criminal assault for beating ex-girlfriend Rihanna in 2009. If arrested again, Brown risks being jailed for probation violation. ...