now i have as and bs. in washington, d.c. police released four people with dar.winter when police arrested him for the murders of sava valve vap poll louse, his wife, amy, their 10-year-old sop and the housekeeper. wint is in jail today, charged with those murder bus police believe he did not act alone and they are still searching for suspects combing through the evidence found at the krim scene. here is now is cnn s alexandra field. reporter: it is potentially the smoking gun, a pizza box found at the scene, inside crust that investigators say connects darren wint to a heinous crime. this is a pretty good find for an investigator. exactly. yeah. reporter: dr. david zang runs a dna identification lab at mount sinai hospital in new york city.