RIO DE JANEIRO - Brazilian authorities say a bridegroom fatally shot his new wife, his best man and then himself after announcing to horrified guests that he had a "surprise" for them.

Police investigator Joao Brito says witnesses told officers that 29-year-old sales manager Rogerio Damascena did not give any previous indication that anything was wrong at his wedding reception.

Brito said yesterday that it is likely the slayings were premeditated because of the groom's announcement and because he had hidden a gun in his father's pickup truck.

Bbride Renata Alexandre Costa Coelho, 25, and best man Marcelo Guimaraes were both killed in Saturday's murder-suicide.

A brother of the bride was treated at a hospital and released.