A/N: Not entirely sure what Hotch and Kate's story is, so just bare with me.

Aaron Hotchner followed as the older, British man led him past desk after desk after desk. His boss, Jason Gideon had requested he go to England on his own and help Scotland Yard to find a serial killer who had killed in the states and now England. The older agent made a bee line for a female agent who was on the phone. She looked up as they approached, quickly ending her conversation on the and stood up.

" Joyner... This is SSA Aaron Hotchner with the FBI's Behavioural Analysis Unit. Agent Hotchner, this is Kate Joyner, leading the case here. You two will be working together on this case. I'll leave you two to it." He left.

Kate turned to Hotchner. " One thing I need to get out in the open... This is my case... I don't need some smarmy, American, FBI Profiling git taking over my case."

" Well you need an American profiler, but if you do end up needing a smarmy, American, FBI Profiling git taking over your case, it'll just take one phone call to Quantico." He smiled.

Kate stared at him. " I need a coffee."

" And I need to get caught up."

" I'm good at multi-tasking. Kate grabbed her long coat and led him out in the rain to a coffee place across the street.

As they sipped on their coffees, Hotch explained that after killing two white females between thirty and forty in a state, he's quickly move onto another. It started in Colorado then went onto Minnesota, New York, Ohio and then Maryland.

Kate then explained to him that nearly a week after his last American killings, a similar killing spree had started there. " He's good," she said. after a moments silence.

"... and sick," Hotch agreed. He looked at his watch. " I can't believe it's ten o' clock already."

" Mmm... Time difference," Kate said. " We should probably get some rest... We'll talk forensics tomorrow." They stood up. Hotch followed her to her car. " Can I give you a lift anywhere?" she asked.

" I have my own car thanks." He indicated to the black car a few space down.

" I meant what I said... and if you even consider taking my case, you will not want to know what will happen."

She got into her car and drove off.