Four people are dead after a plane crashed in Murray County, according to Murray County Sheriff's Office. The plane was flying out of Tennessee. Authorities say it was a Twin Piper aircraft, and that the FAA is investigating. The plane crashed near Piney Hill Road and Old Highway 411 in Ramhurst, according to officials. Witnesses told officials they say a Piper PA23 crash around 4:44 pm. The cause of the crash is still under investigation.