Lockhart

Xavier had his driver drop off Leila at her apartment after the meal. He wanted to send her back personally, but Saffron called with an urgent case involving the missing mirror from Death Valley. 

It was the first clue Trinity found since the operation involving the cult led by Castiel. The short phone call implied the possibility that the person who gave the mirror to the cult leader was a part of one of the supernatural families in the Capital City. 

Therefore, he could only entrust Leila to a member of his personal guard. 

Xavier wanted to assign Leila her own personal guards and driver. Samhain had already assembled a team with suitable and capable people. Apart from the young lady from the plane crew, the rest were highly trained and members of Xavier's blood-sworn subordinates.