NEW : Crime scene investigators said each body had ligature marks around the neck . Preacher says he found funeral for mom , four kids ` in the back of a pickup truck. Bodies found January 12 in apartment in El Reno , Oklahoma . Woman 's boyfriend , Joshua Steven Durcho , admitted choking her , affidavit says .
NEW : Preacher says he found funeral for mom , four kids ` in the back of a pickup truck. Bodies found January 12 in apartment in El Reno , Oklahoma . Woman 's boyfriend , Joshua Steven Durcho , admitted choking her , affidavit says .