The area in which authorities are searching for Graham has expanded . Investigators are looking for connections to other missing persons and homicide cases . Police have not said if they believe the killings were random. Sexual assault accusations against Matthew have surfaced elsewhere in Virginia .
The area in which authorities are searching for Graham has expanded . Investigators are looking for connections to other missing persons and homicide cases . DNA has linked suspect Jesse Matthew to another murder case . Sexual assault accusations against Matthew have surfaced elsewhere in Virginia .