CHICAGO (AP) _ A partially eaten chicken dinner found shortly after seven people were gunned down in a restaurant in 1993 may be able to provide authorities with a genetic profile of the killer, the Chicago Tribune reported Friday.
DNA extracted from the dinner does not match any of the victims, the newspaper said, citing an unidentified investigator.
Advances in DNA testing since the killings have allowed investigators to compare smaller pieces of DNA evidence than ever before, and the investigator said the DNA left on the meal was detected last year using new techniques.
Genetic tests of some past suspects has not yet been completed, the investigator said. Other suspects already tested do not match the DNA.
Police have long suspected that the killer or killers talked their way into the Brown’s Chicken & Pasta restaurant in suburban Chicago at closing time by saying they wanted to buy food.
The meal, which included chicken, fries, a biscuit and a drink, was discovered in a trash bin inside the restaurant. The contents of the meal match a receipt, stamped a few minutes after the 9 p.m. closing.