Police have tentatively identified the three people killed when their small plane crashed into a Massachusetts home as a Tennessee doctor, his wife and college-age daughter.

Plainville police say they believe the pilot of the Beechcraft BE36 plane that crashed Sunday was Joseph Richard Kalister, an emergency room physician, his wife, Betty, and daughter, Nicole, who was 18 or 19. The family lived in Knoxville.

Police Chief Jim Alfred says the identities are still unconfirmed because of the extent of the injuries. He says the state medical examiner will have to do further testing to make positive identifications.

All four residents of the Plainville home escaped unharmed.

Minutes before the crash, the pilot calmly told an air traffic controller he has no engine power and is gliding in the minutes before impact.