Police had been called to the home before , Doering said , but would not say why . Police identify one of deceased as 19-year - old Michael Toller . John Heinze Jr. heard on the call telling dispatcher he arrived home to find dead . ` ` I do n't know what to do , man , '' he tells 911 . ` ` My man , he 's laying there dead '' Police say ` ` no known suspects '' in the attack ; 7 dead at first , 8th died later .
Police identify one of deceased as 19-year - old Michael Toller . John Heinze Jr. heard on the call telling dispatcher he arrived home to find dead . ` ` I do n't know what to do , man , '' he tells 911 . ` ` My man , he 's laying there dead '' Police say ` ` no known suspects '' in the attack ; 7 dead at first , 8th died later .