It was the same gun - and now police believe it was the same man. Hollywood publicist Ronni Chasen was murdered in a random shooting by a robber riding a bicycle, Beverly Hills police revealed this afternoon. Detectives believe ex-convict Harold Smith was acting alone when he tried to hold up Miss Chasen after she pulled Random act of violence: Harold Smith, right, was said to be riding by on his bicycle in Beverly Hills late at night when he spotted Ronni Chasen in her Mercedes and attempted to rob her - but ended up shooting her dead Smith was...