 Investigations into the murder of Linda Yalem (1990) were originally conducted by the Amherst, New York Police Department; the murder of Majane Mazur (1992) was originally conducted by the Buffalo Police Department; after the murder of Joan Diver (2006) a special task force – the Bike Path Task Force – was created by the Erie County (NY) Sheriff's Office, which included the New York State Police, Buffalo Police Department, Amherst Police Department; and support assistance from the Federal Bureau of Investigation (FBI).Police say DNA found at eight crime scenes matches DNA secretly taken from Sanchez before his arrest.DNA from Sanchez was obtained after police who were members of the Bike Path Task Force acquired it.