P104ORACLE 104 Fri18 Apr ITV 1648:53   RIDDLE OF FOURTH  KIDNAP BRITON The fate of a British TV journalist kidnapped in Beirut remains uncertain. A Christian radio station in the Lebanese capital broadcast a claim that John McCarthy, 29, snatched yesterday, had been killed and his body dumped. A police search of the building, where the body was supposed to have been, revealed nothing and WTN, Mr McCarthy's employers, said the report was untrue. The Foreign Office says that journalist Alec Collett was not among three men found murdered yesterday. See also p102-p105 GREAT HOLIDAY BARGAINS A.T.MAYS 192