Neither the pilot 's identity nor information about how many people were in the plane was immediately available . NEW : Two people are believed dead , Ex-Microsoft says . NTSB executive was aboard the plane , a family member says . Between four and six children , ages 1 and Friday , are believed to have been in the house . It was not immediately known if anyone was in the plane along with the pilot .
NEW : Two people are believed dead , Ex-Microsoft says . NTSB executive was aboard the plane , a family member says . Between four and six children , ages 1 and Friday , are believed to have been in the house . It was not immediately known if anyone was in the plane along with the pilot .