Find the full name of employee who supported the most number of customers.
SELECT T1.first_name , T1.last_name FROM employees AS T1 JOIN customers AS T2 ON T1.id  =  T2.support_rep_id GROUP BY T1.id ORDER BY count(*) DESC LIMIT 1
SELECT T1.first_name , T1.last_name FROM employees AS T1 JOIN customers AS T2 ON T1.id  =  T2.support_rep_id GROUP BY T1.id ORDER BY count(*) DESC LIMIT 1
[{'first_name': 'Jane', 'last_name': 'Peacock'}]