how to get to had you not heard about this. >> reporter: when jelani day's body was found in the river, his organs were completely liquid according to the former family attorney after over a week of significant deterioration in the river. the coroner's report said there was no evidence of injury prior to death, including strangulation or assault. >> he doesn't have any skin to determine bruising, so none of this makes sense. you want to tell me that there's no physical trauma done to my child? do i accept that they tell me this is my son? i accept it, but i still need to know why my son is not here anymore because somebody knows. >> reporter: the peru police department writing to cnn in part, there are hundreds of hours of video to look through, numerous follow-ups to conduct. the members of the unit are working tirelessly to find out what happened to jelani day. but not fast enough for a mother left searching for answers.