(MCT) — CHICAGO — Though Sherry Marino has been visiting a grave that was supposed to contain her son’s remains for more than three decades, she believed he was not there — that Michael was not, as the authorities told her, body No. 14 from the home of serial killer John Wayne Gacy.

On Thursday, Marino’s attorneys announced, DNA testing confirmed that the remains she buried were not those of her 14-year-old son, who was last seen with a friend 36 years ago at a hamburger restaurant in Chicago near where police had determined Gacy trolled for victims.