. >> reporter: nyu economist petra moser says immigrant entrepreneurs have a long history in the u.s. back as far as far as drew, who came from scotland, and built a very, very large, adustrial-- you might even call it an industrial empire and created many, many jobs. >> reporter: succhi now plans to add 40 more jobs by the end of ehe year, a reminder that immigrants don't always take work from americans. reey create work, too. >> if you have hardworking arople and you have people-- when they come together, you ogow, magic can happen. >> reporter: tony dokoupil, cbs news, bergen, new jersey. >> ninan: still ahead, was a benage girl lured to her death with a few key strokes on a smartphone app? "48 hours" investigates. few key strokes on a few key strokes on a smartphone app? "48 hours" investigates. who hugs a friend. who is done with treatments that don't give you clearer skin. be the you who controls your psoriasis with stelara® just 4 doses a year after 2 starter doses. stelara® may lower your ability to fight infections and may increase your risk of infections and cancer. some ser