How many inspections done by Lisa Tillman ended up with the result of "Out of Business"?
the result of "Out of Business" refers to results = 'Out of Business'
SELECT COUNT(T1.inspection_id) FROM inspection AS T1 INNER JOIN employee AS T2 ON T1.employee_id = T2.employee_id WHERE T2.first_name = 'Lisa' AND T2.last_name = 'Tillman' AND T1.results = 'Out of Business'