NEW : Wife , Amanda Carina Barbosa Rodrigues , detained at Recife police station . NEW : Police officer killed in shootout with armed men outside the Brazilian embassy in Rio de Janeiro. NEW : Gatti 's body was found Saturday in hotel room with strangulation marks . The former world boxing champion was vacationing with his 23-year-old wife .
NEW : Wife , Amanda Carina Barbosa Rodrigues , detained at Recife police station . NEW : Rodrigues ' answers to interrogation reportedly had inconsistencies . NEW : Gatti 's body was found Saturday in hotel room with strangulation marks . The former world boxing champion was vacationing with his 23-year-old wife .