Ind. Code § 3-11-10-23

Sec. 23. If proof is given to a precinct election board that an absentee voter marked and forwarded an absentee ballot but died before election day, then the inspector shall return the ballot of the deceased voter with the other defective ballots to the officer issuing the ballots. However, the casting of an absentee ballot by a deceased voter does not invalidate an election.