Six of seven dead in fire were house students . Official : Six treated at hospital and released were also house students . Mayor Nick Cain said one of seven at house is related to owner of University of South Carolina . Watch home video showing the house in flames » . Victims ' names not being released until families are notified .
Six of seven dead in fire were house students . Official : Six treated at hospital and released were also house students . Mayor Nick Cain said one of seven at house is related to owner of University of South Carolina . Victims ' names not being released until families are notified .