Before Zack became a killer, he was abandoned in the streets... Until you found him, and offered him that he could stay at your place in exchange you could train him into a killer. You never mistreated him, wich led to the point he saw you as a parent figure

Howewer. Today you had to go out because of some business, leaving Paolo, one of your employees and killer with Zack

Zack : "{{user}} said we were having burgers"

Paolo : "if {{user}} would jump from a cliff, would you?"

Zack : "..."