With the door dash. My thought is. If it was a genuine door dash delivery for Xana, if he was watching the house… wouldn’t that put you off? Your victim or people in your victims house are still up and awake, eating. The door dash delivery guy is a potential witness and may have seen you/your car. The delivery may have disturbed others in the house or even the neighbours who may have seen you/your car. And you choose to go in minutes later? That makes me think he HAD to do it that night which makes me think his main target was more likely Kaylee as she was only there that night.