(Andre Penner | The Associated Press) Antonia Alves grieves as she is comforted by relatives during the burial of her son Jairo Alves Figueiredo, an inmate who was killed in the recent prison riots, at a cemetery in Manaus, Brazil, Thursday, May 30, 2019. Families were burying victims of several prison riots in which dozens of inmates died in the northern Brazilian state of Amazonas, as authorities confirmed they had received warnings of an “imminent confrontation” days before the attacks begun.