How many domestic crime cases has Commander Ronald A. Pontecore Jr. been responsible for investigating?
domestic crime refers to domestic = 'TRUE'; person responsible for investigating refers to commander
SELECT SUM(CASE WHEN T2.domestic = 'TRUE' THEN 1 ELSE 0 END) FROM District AS T1 INNER JOIN Crime AS T2 ON T2.district_no = T1.district_no WHERE T1.commander = 'Ronald A. Pontecore Jr.'