When Twana Smith’s body was discovered behind an abandoned building in Hartford in October 1997, she joined a growing list of the city’s vulnerable locals who fell victim to violent predators. And for decades, her case sat unsolved, gathering dust… even as detectives found the keys to unlock mysteries from the same era. But after years of dead ends, investigators now believe they're on the brink of a breakthrough… they just need a final push over the finish line.