Supermarket. and tonight here, pierre thomas with the description from prosecutors of the chilling scene inside that store. what we had not heard before. >> reporter: attorney general merrick garland laying flowers at that makeshift memorial at the scene of the buffalo grocery store massacre. today, officially declaring it an unmitigated intentional act of hate-based murder. >> no one in this country should have to bury a loved one because of such hate. >> reporter: prosecutors flatly saying today 18-year-old payton gendron's goal was to kill as many blacks as possible, charging him with 26 co...