Although I can’t find any reports on it, something had to have happened between the groom, the best man and the wife. You just don’t kill your wife and the best man as well as yourself without a powerful reason.
Lovers triangle maybe?
CBS News reports that 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, authorities said Monday.
Witnesses reported that 29-year-old Rogerio Damascena, a sales manager in Camaragibe, outside the northeastern Brazilian city of Recife, did not give any previous indication that anything was wrong at his wedding reception, police investigator Joao Brito said. Brito would not speculate on a possible motive, saying family members were in shock and he had not interviewed them yet.
Brito did say the killings are believed to be premeditated because of the groom's announcement and because he had hidden a gun in his father's pickup truck. Twenty-five-year-old bride Renata Alexandre Costa Coelho 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.
More details here
