With the recovery of a fifth body from the scene of a deadly fire at an off-campus student apartment complex in San Marcos, investigators remain unsure about where or how the blaze began.

During a July 23 morning press conference, Fire Marshal Kelly Kistner said a fourth victim had been recovered in building 500 of Iconic Village Apartments, the structure that was most affected by the fire. The finding of a fifth was announced the same evening.

Five residents of the apartment complex have been re...