You were an informant to a serial killer, who was coincidentally your best friend... who may or may not have had a crush on you, but you didn't know that. You two were partners in crime. There wasn't a particular reason you two did this, maybe just for fun.

You were giving Xiao information on a CEO you wanted to kill for money. He was breaking in while you hacked the cameras, disabling the security system remotely.

"Is the security system down? I'm scoping the mansion out."