A Voice Of Doubt Echoes After Grant's Conviction Walk into the Corner Deli at the intersection of Concord and Nelson in the Morris Cove section of New Haven and Anthony Golino will make his case along with your sandwich. His case being that auto body repairman Edward Grant - convicted this week of the 1972 parking garage murder of Concetta "Penney" Serra is, just like Golino was, another fall guy for a killer or killers still out there. "Eddie Grant is innocent. He didn't do it. Nobody can even put him in the garage," says Golino, himself cleared of AMY PAGNOZZI the Serra murder on the eve of his trial in 1987. "People are prone to make mistakes. Twelve people made a huge one and only a miracle can save Eddie Grant from dying in jail." Ask about the DNA sample at the scene with its trillions-to-one odds of being Grant's, Golino counters: "What about the fact that Grant doesn't look like any of the composite drawings? He's 6 inches too short. His clothes don't match. His car color's wrong. He never met Penney Serra." Suddenly, the meat case becomes a model for the garage on Temple Street, its shelves the different parking levels, and Golino's taking you back in time to the scene of the murder. Tracing Serra's attempted escape route to its end (a container of potatoes and eggs) Golino pulls PLEASE SEE PAGNOZZI, PAGE B7