investigators have scoured the home in paterson, new jersey. let's go to arena. what are you learning? >> reporter: we have been here for several hours. we spoke to folks live in this neighborhood authorities began last night blocking off street. this is where the attention was focused. a dozen fbi and other law enforcement officials we saw earlier today going in and out of had red brick building where sayfullo saipov lived with his wife and three children. >> we saw them carrying out various items. at one time brought out a large rectangular item. and later on what appeared to be documents. also saw a couple of fbi agents coming out with a big black garbage bag. they were wearing the blue booties to protect their feet from contaminating the scene, indication they were searching