CARLTON, MN (KDAL) - After an autopsy and an investigation by Carlton County authorities, it was determined that a Twin Lakes Township man died from head trauma sustained in an accidental fall.  Alcohol is believed to have been a contributing factor in the fall.  66 year old Larry Ralph Martin was found dead in his home last week.  A 71 year old female, who also resides in the home, was taken to a hospital where she is still being treated for an unknown medical condition.