also been occupied by Chinese immigrants. A week after the killings, the Times-Union reported that there was some evidence to support those claims as the New York City Police Department (NYPD) began assisting by investigating possible leads in its jurisdiction. Chen, the newspaper said, had allegedly been involved in large transfers of unrecorded cash used to pay undocumented Chinese workers at restaurants in the New York City area, the Capital District and beyond, transporting them from Chinatown to their jobs and back and providing accommodation in cities too far away for day bus trips. The week of the killing, a lengthy article in The New Yorker had documented this network, predominantly composed of Fujianese, for whom even the low pay and long hours at restaurants in the U.S. are preferable to the paucity of economic opportunities at home; the author's primary source mentioned having taken a day bus from Chinatown to Albany to work at a restaurant there at one point. Later it was reported that police had found 18 mattresses on the floor in the basement of the Chen house, further suggesting that the family had been involved in trafficking undocumented workers. Investigators were also looking at possible connections with two other unsolved killings of Chinese immigrant families that had occurred elsewhere in the U.S. during the 2010s. In the first such incident, three members of the same family—a married couple and the wife's sister—were found stabbed in their D'Iberville, Mississippi, home in 2011. All were involved in running a family restaurant; investigators there believe the three were killed by professional assassins dispatched from New York City. At the beginning of 2014, another Chinese family of four were found shot in the heads in their home outside Houston, Texas. Later progress A year after the killings, Scott Coburn, head of the state police's criminal investigations bureau, said that 600 leads had come in from various sources, which he considered to be unusually low for a crime this serious. In addition to the NYPD and the Federal Bureau of Investigation (FBI), both of which made interpreters available, investigators had reached out for help to police departments not only in other North American cities with large Asian populations, such as Chicago, Los Angeles, and Montreal, but to law enforcement in China, as well. Even so, Soares admitted at a news conference around the anniversary of the Chens' deaths that very little