On January 22, 2000, 22-month-old Brooklyn V. Digesualdo died at her home in Evanston, an unincorporated community in Frederick, Colorado, under circumstances investigators have long called suspicious. Brooklyn was in the care of her mother’s boyfriend, Miguel Sirio, who told police he briefly left the room, during which he said the toddler fell off a bed; he later found her not breathing. Emergency responders transported Brooklyn to Children’s Hospital in Denver, where she died.

Weld County Sheriff’s Office detectives never determined an official cause of death and have treated the case as a potential homicide. No arrests or official suspects have been announced. Detectives have identified Sirio as a person of interest and have sought information about his whereabouts; his last known location was reported among the homeless population in the Denver area. Any readers who knew Brooklyn, her family, or have information about Miguel Sirio are asked to come forward.