Aguirre-Jarquin, now 38, has told the same story since the 2004 killings: He says he went into Williams’ and Bareis’ Altamonte Springs home looking for beer after a night of drinking. He says he found Williams’ body and held her, checking for signs of life. He says he found the knife and picked it up because he didn’t know whether the killer was still present. And he says he didn’t call police and tried disposing of evidence — including the knife and clothes — because he was an undocumented immigrant who did not want to be deported. “Then who is going to help my mother?” he would later say to a detective.