The cause of death for Dr. Robert Chastant of New Iberia has been identified.
Officials say the orthodontist's death was caused by blunt force injuries to the neck and head.
21-year-old Ismael Viera has been charged with second degree murder. Viera is reportedly an illegal immigrant living in a rent house on Dr. Chastant's property. Viera is being held in the Iberia Parish Jail.
Chastant is survived by his wife and four children.
Funeral arrangements are pending.