NBC新闻:嫌犯扮成联邦快递员入室抢劫

The first suspect approached this Brooklyn home dressed as a Fedex driver, forcing his way in as another man scrambles up the stairs. Inside with one suspect claiming he's a cop， an elderly couple and their daughter are tied up. The top floor ransacked of more than $100,000 in cash and jewelry. The security camera shows one man trying to force the young woman to open a safe. The entire family bound and terrified. All of a sudden boom. This neighbor says the men hauled the safe out of the home to a waiting getaway car. 

I came around here and there's this guy coming out of this door, pushing this big black box. It's not the first time thieves have impersonated shipping employees or contractors to carry out a heist. Police also releasing this video in New York and this one in Houston of men posing as delivery drivers and breaking into homes. Fedex saying their employees always wear photo ID badges, adding you should sign up online to track shipments. Tonight investigators trying to find these men who did deliver a frightening robbery.